Document:

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                                  Exhibit 4.21

                                                      Name: GCD Investments, LLC

                             SUBSCRIPTION AGREEMENT

Affinity International Travel Systems, Inc.
100 Second Avenue South
Suite 1100S
St. Petersburg, Florida 33701

Gentlemen:

The undersigned understands that Affinity International Travel Systems, Inc., a
Nevada corporation (the "Company"), is offering for sale up to 2,142,857 shares
of its Common Stock, $0.001 par value per share (the "Common Stock") for the
Purchase Price set forth in Section 4 hereof.

The undersigned further understands that the offering is being made without
registration of the Common Stock under the Securities Act of 1933, as amended
(the "Securities Act"), in reliance on the exemption contained in Rule 504 of
Regulation D under the Securities Act for transactions by an issuer not
involving a public offering and the undersigned further understands that the
undersigned is purchasing the Common Stock without being furnished any
prospectus setting forth all of the information that would be required to be
furnished under the Securities Act, and understands further that this offering
is being made only to "accredited investors" (as defined in Rule 501 of
Regulation D under the Securities Act).

These securities have not been registered with or approved by the Securities
Division of the Attorney General's Office in Delaware. They are offered and sold
pursuant to the Accredited Investor exemption provided by Section 503 of the
Securities Rules and Regulations of the State of Delaware. Sales may only be
made to accredited investors. Resale or disposal of these securities within
Delaware may only be made pursuant to an exemption or an effective registration
statement.

      1. Subscription. Subject to the terms and conditions of this Subscription
Agreement (this "Agreement"), the undersigned hereby irrevocably subscribes for
that number of shares of Common Stock set forth in Appendix A, which is payable
as described in Section 4.

      2. Acceptance of Subscription and Issuance of Shares. It is understood and
agreed that the Company has the right to accept or reject this subscription, in
whole or in part, and that this subscription is accepted by the Company only
when it is signed by a duly authorized officer of the Company and delivered to
the undersigned at the Closing referred to in Section 3.

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      3. The Closing. The closing of the purchase and sale of the Common Stock
(the "Closing") shall take place at the offices of the Company or such other
mutually acceptable place on or before December 20, 1999 or at such time and
place as the Company and the undersigned shall mutually agree upon. The Company
may, at its option, elect to close the purchase and sale of the shares in one or
more Closings.

      4. Payment for Shares. The undersigned shall make payment in the amount of
Four Hundred Ninety Nine Thousand Nine Hundred Ninety Nine and 85/100 Dollars
($499,999.85) (the "Purchase Price"), for the Common Stock, less the costs,
expenses, fees and commissions set forth on the attached Appendix B. The
Purchase Price shall be paid to the Company via certified check, personal check,
or wire transfer to the account designated by the Company. The Purchase Price,
less any and all deductions therefrom as provided for herein, shall be paid in
full to the Company not later than Friday, December 24, 1999 as set forth on
Appendix B.

      5. Representations of the Company. As of the date of the Closing (the
"Closing Date"), the Company represents as follows:

      (a)   Valid Issuance. The Common Stock, when issued and paid for, will
            represent validly authorized, duly issued and fully paid and
            non-assessable shares of the Company, and the issuance thereof will
            not conflict with the Certificate of Incorporation or Bylaws of the
            Company nor with any outstanding warrant, option, call, preemptive
            right or commitment of any type relating to the Company's capital
            stock.

      (b)   No Transfer Restrictions. Upon issuance to the undersigned, the
            Common Stock will be free from any and all restrictions on transfer,
            including pursuant to Rule 144 of the Securities Act except as
            agreed to by and between the undersigned and the Company herein;
            provided, however, that the undersigned must be in full compliance
            with all requirements of Rule 504 of Regulation D under the
            Securities Act, Rule 144 of the Securities Act and all state
            securities laws.

      (c)   Other Representations and Agreements.

            i)    Marketability. Prior to becoming a fully reporting company
                  under the Securities Exchange Act of 1934, as amended (the
                  "Exchange Act"), the Company shall maintain adequate current
                  public information in satisfaction of the requirements for
                  resales of restricted stock pursuant to Rule 144 promulgated
                  under the Securities Act of 1933, as amended, and Rule
                  15c-2(11) promulgated under the Exchange Act, including, but
                  not limited to, the publication over a nationally recognized
                  reporting service or newswire of annual audited financial
                  statements and semi-annual interim unaudited balance sheets
                  and income statements, it being

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                  understood that the Company does not currently have audited
                  financial statements for the year ended June 30, 1998. After
                  the Company becomes a fully reporting company, the Company
                  shall file all reports required under the Exchange Act.

      6. Representations and Warranties of the Undersigned. The undersigned
hereby represents and warrants to the Company and to each officer, director, and
agent of the Company that:

      (a)   Authority. The undersigned has all requisite authority to enter into
            this Agreement and to perform all the obligations required to be
            performed by the undersigned hereunder.

      (b)   Access to Information. The undersigned is familiar with the business
            and financial condition, properties, operations and prospects of the
            Company. The undersigned has been furnished copies of the financial
            statements of the Company and all other documents requested by it
            and has had an opportunity to discuss the Company's business and
            financial condition, properties, operations and prospects with the
            Company's management. The undersigned has also had an opportunity to
            ask questions of officers of the Company, which questions were
            answered to his satisfaction. The undersigned understands that such
            discussions were intended to describe certain aspects of the
            Company's business and financial condition, properties, operations
            and prospects, but were not a thorough or exhaustive description.

      (c)   Representations and Warranties as of Closing. The undersigned
            understands that, unless it notifies the Company in writing to the
            contrary at or before the Closing, all the undersigned's
            representations and warranties contained in this Agreement will be
            deemed to have been reaffirmed and confirmed as of the Closing,
            taking into account all information received by the undersigned.

      (d)   Risk Factors. The undersigned understands that the purchase of the
            Common Stock involves substantial risks.

      (e)   Knowledge, Skill and Experience. The undersigned has such knowledge,
            skill and experience in business, financial and investment matters
            so that is capable of evaluating the merits and risks of an
            investment in Common Stock. To the extent necessary, the undersigned
            has retained, at its own expense, and relied upon, appropriate
            professional advice regarding the investment, tax and legal merits
            and consequences of this Agreement and owning Common Stock.

      (f)   Accredited Investor. The undersigned is an "accredited investor" as
            defined in Rule 501(a) under the Securities Act. The undersigned has
            completed an Accredited Investor Questionnaire, a copy of which is
            attached hereto as Appendix C

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      (g)   Investment Intent. The undersigned is acquiring the Common Stock
            solely for its own beneficial account, for investment purposes, and
            not with a view to, or for immediate resale in connection with, any
            improper distribution of the Common Stock. The undersigned
            understands that the Common Stock has not been registered under the
            Securities Act or any State Securities Laws by reason of specific
            exemptions under the provisions thereof which depend in part upon
            the investment intent of the undersigned and of the other
            representations made by the undersigned in this Agreement. The
            undersigned understands that the Company is relying upon the
            representations and agreements contained in this Agreement (and any
            supplemental information) for the purpose of determining whether
            this transaction meets the requirements for such exemptions.

      (h)   Stock Transfer Restrictions. The undersigned agrees: (i) that it
            will not sell, assign, pledge, give, transfer or otherwise dispose
            of the Common Stock or any interest therein, or make any offer or
            attempt to do any of the foregoing, except pursuant to a
            registration of the Common Stock under the Securities Act and all
            applicable State Securities Laws or in a transaction which is exempt
            from the registration provisions of the Securities Act and all
            applicable State Securities Laws; and (ii) that the Company and any
            transfer agent for the Common Stock shall not be required to give
            effect to any purported transfer of any of the Common Stock except
            upon compliance with the foregoing provisions.

      7. Conditions to Obligations of the Undersigned and the Company. The
obligations of the undersigned to purchase and pay for the number of shares of
Common Stock specified herein and of the Company to sell the Common Stock are
subject to the satisfaction at or before the Closing of the following condition
precedent:

      (a)   Representations and Warranties. The representations and warranties
            of the Company contained in Section 5 and of the undersigned
            contained in Section 6 shall be true and correct on and as of the
            Closing in all respects with the same effect as though such
            representations and warranties had been made on and as of the
            Closing.

      (b)   Payment of Third Party Payables. At or prior to the Closing Date,
            the Company shall have paid those certain third party payables set
            forth on the Appendix D attached hereto and made a part hereof.

      8. Additional Agreements.

      (a)   Lock-Up Agreement. Without the prior written consent of the Company,
            which consent shall not be unreasonably withheld, the undersigned
            agrees not to sell any of the shares of Common Stock in a
            transaction on the public markets, whether through registration,
            sale pursuant to Rule 144 of the Securities Act, or otherwise, for a
            period of ninety (90) days following the Closing Date. It is
            acknowledged that any breach of this provision will cause
            irreparable harm to the Company for which there will be no adequate
            remedy at law and the Company shall be entitled,

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            in addition to other remedies at law or in equity, to specific
            performance of this provision by the undersigned. In the event that
            the undersigned sells, transfers, assigns or otherwise disposes of
            any of the Common Stock in a non-public transaction, the purchaser
            or transferee of such Common Stock must agree to be bound by the
            provisions of this paragraph and must attest to such agreement in
            writing, a copy of which must be provided to the Company upon
            request.

      (b)   Shareholders' Meetings. For so long as the undersigned or any
            affiliate or assignee of the undersigned is a shareholder of the
            Company, the Company shall notice and hold a general meeting of the
            shareholders of the Company not less than once every calendar year
            for the purpose of electing directors of the Company.

      9. Obligations Irrevocable. The obligations of the undersigned hereunder
shall be irrevocable, except with the consent of the Company, until 5:00 p.m.
EDT, December 20, 1999.

      10. Equitable Remedies. Each party hereto acknowledges that a refusal
without just cause by such party to consummate the transactions contemplated
hereby will cause irreparable harm to the other party, for which there may be no
adequate remedy at law. A party not in default at the time of such refusal shall
be entitled, in addition to other remedies at law or in equity, to specific
performance of this Agreement by the party that so refused or failed to
consummate the transactions contemplated hereby. In any action to enforce the
terms of this Agreement, the successful party shall be entitled to recover its
reasonable attorneys' fees, all costs and expenses from the party who refused or
failed to perform this Agreement.

      11. Waiver, Amendment. Neither this Agreement nor any provisions of this
Agreement shall be modified, changed, discharged or terminated except by an
instrument in writing, signed by the party against whom any waiver, change,
discharge or termination is sought.

      12. Assignability. Neither this Agreement nor any right, remedy,
obligation or liability arising hereunder or by reason of this Agreement shall
be assignable by the Company without the prior written consent of the
undersigned. The undersigned may assign, transfer, pledge, encumber, mortgage or
otherwise alienate any of the rights afforded to it hereunder and the Company
shall be bound by the terms hereof to such assignee or transferee; provided,
however, that any assignment, transfer, or other alienation of any right
hereunder by the undersigned shall be in compliance with all federal and state
securities laws.

      13. Expenses. The Company shall pay all actual expenses incurred in
connection with this Agreement and the transactions contemplated hereby,
including, but not limited to, any and all legal, travel, lodging, meals and
other related transaction expenses of the undersigned and, upon request,
submission of appropriate invoices and receipts. In any action to enforce the
terms of this Agreement, the successful party shall be entitled to recover its
reasonable costs and expenses, including reasonable attorneys' fees, from the
party who refused or failed to perform this Agreement.

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      14. Applicable Law. This Agreement shall be governed by and construed in
accordance with the federal laws of the United State of America and the laws of
the State of Nevada.

      15. Section and Other Headings. The section and other headings contained
in this Agreement are for reference purposes only and shall not affect the
meaning or interpretation of this Agreement.

      16. Counterparts. This Agreement may be executed in any number of
counterparts, each of which when so executed and delivered shall be deemed to be
an original and all of which together shall be deemed to be one and the same
agreement.

      17. Notices. All notices and other communications provided for herein
shall be in writing and shall be deemed to have been duly given if delivered
personally or sent by registered or certified mail, return receipt requested,
postage prepaid:

      (a)   If to the Company, to it at the following address:

            100 Second Avenue South
            Suite 1100S
            St. Petersburg, Florida 33701
            Attention: Daniel G. Brandano
            FAX: (727) 896-1403

            with a copy, which shall not constitute notice, to

            Brown Rudnick Freed & Gesmer
            One Financial Center
            Boston, Massachusetts 02111
            Attention: John Nossiff, Esq.
            Fax: (617) 856-8201

      (b)   If to the undersigned:

            GCD, LLC
            1209 Orange Street
            Wilmington, Delaware 19801

            and

            Gordon C. Dumont
            4821 Sheridan
            Metairie, Louisiana 70002

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            with a copy, which shall not constitute notice, to:

            Locke Liddell & Sapp, LLP
            2200 Ross Avenue
            Suite 2200
            Dallas, Texas 75201-6776
            Attention: William C. Perez, Esq.
            FAX: (214) 740-8800

or at such other address as either party shall have specified by notice in
writing to the other.

      16. Binding Effect. The provisions of this Agreement shall be binding upon
and accrue to the benefit of the parties and their respective successors and
permitted assigns.

      17. Survival. All representations contained in this Agreement shall
survive the closing of the issuance and sale of the shares of Common Stock.

      18. Notification of Changes. The undersigned hereby covenants and agrees
to notify the Company upon the occurrence of any event before the closing of the
purchase of the Common Stock pursuant to this Agreement which would cause any
representation, warranty, or covenant of the undersigned contained in this
Agreement to be false or incorrect.

     [The immediately following page contains the signatures of the parties]

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      IN WITNESS WHEREOF, the undersigned has executed this Subscription
Agreement this 20th day of December, 1999.

                              Name: GCD, LLC,
                                    a Delaware limited liability company

                                    BY: GCD, LP,
                                        a Delaware limited partnership,
                                        its sole member

                                        BY:  /s/ Gordon C. Dumont
                                             -----------------------------
                                             Gordon C. Dumont,
                                             General Partner

Accepted as of
December 20, 1999

AFFINITY INTERNATIONAL
TRAVEL SYSTEMS, INC.

By:   /s/ D.G. Brandano
      -----------------------
      DANIEL G. BRANDANO
      President and
      Chief Executive Officer

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                                   APPENDIX A

                          CONSIDERATION TO BE DELIVERED

-------------------------------------------------------------------------------

 Shares of Common Stock to be Acquired       Aggregate Amount to Be Paid
 -------------------------------------       ---------------------------
                                                      At Closing
                                                      ----------

               1,428,571                $499,999.85 less the amount of all
                                        expenses set forth on Appendix B hereto
                                        (the purchase price, exclusive of
                                        expenses, shall be paid to the Company
                                        in two (2) installments as follows: (1)
                                        $249,999.85 not later than Friday,
                                        December 24, 1999, and (2) $250,000.00
                                        not later than January 5, 2000)

-------------------------------------------------------------------------------

                                       9
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                                   APPENDIX B

                               COSTS AND EXPENSES

See attached.

                                       10
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                                   APPENDIX C

                         ACCREDITED INVESTOR CERTIFICATE

      The undersigned Investor hereby certifies that it is an Accredited
Investor as that term is defined in Regulation D adopted pursuant to the
Securities Act of 1933. The specific category(s) of Accredited Investor
applicable to the undersigned is checked below.

___                           a. any natural person whose individual net worth,
                    or joint net worth with that person's spouse, at the time of
                    his purchase exceeds $1,000,000;

___                           b. any natural person who had an individual income
                    in excess of $200,000 in each of the two most recent years
                    or joint income with that person's spouse in excess of
                    $300,000 and has a reasonable expectation of reaching the
                    same income level in the current year;

___                           c. any bank as defined in section 3(a)(2) of the
                    Securities Act of 1933, as amended (the "Act"), or any
                    savings and loan association or other institution as defined
                    in section 3(a)(5)(A) of the Act, whether acting in its
                    individual or fiduciary capacity; any broker or dealer
                    registered pursuant to section 15 of the Securities Exchange
                    Act of 1934; any insurance company as defined in section
                    2(13) of the Act; any investment company registered under
                    the Investment Company Act of 1940 (the "1940 Act") or a
                    business development company as defined in section 2(a)(48)
                    of the 1940 Act; any Small Business Investment Company
                    licensed by the U.S. Small Business Administration under
                    section 301(c) or (d) of the Small Business Investment Act
                    of 1958; any plan established and maintained by a state, its
                    political subdivisions for the benefit of its employees, if
                    such plan has total assets in excess of $5,000,000; any
                    employee benefit plan within the meaning of the Employee
                    Retirement Income Security Act of 1974 ("ERISA"), if the
                    investment decision is made by a plan fiduciary, as defined
                    in section 3(21) of ERISA, which is either a bank, savings
                    and loan association, insurance company, or registered
                    investment adviser, or if the employee benefit plan has
                    total assets in excess of $5,000,000; or, if a self-directed
                    plan,

                                       11
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                    with investment decisions made solely by persons that are
                    accredited investors;

___                           d. any private business development company as
                    defined in section 202(a)(22) of the Investment Advisers Act
                    of 1940;

___                           e. any organization described in section 501(c)(3)
                    of the Internal Revenue Code, corporation, Massachusetts or
                    similar business trust, or partnership, not formed for the
                    specific purpose of acquiring the securities offered, with
                    total assets in excess of $5,000,000;

___                           f. any director, executive officer, or general
                    partner of the Company;

 X                            g. any entity in which all of the equity owners
                    are accredited investors; or

___                           h. any trust, with total assets in excess of
                    $5,000,000, not formed for the specific purpose of acquiring
                    the securities offered, whose purchase is directed by a
                    sophisticated person as described in section
                    230.506(b)(2)(ii) of Regulation D under the Act.

      IN WITNESS WHEREOF, the undersigned has executed this Accredited Investor
Certificate as of the 20th day of December, 1999.

                              GCD Investments, LLC,
                                  a Delaware limited liability company

                                  BY:  GCD Investments, LP,
                                       a Delaware limited partnership,
                                       its sole member

                                       BY:  /s/ Gordon C. Dumont
                                            -----------------------------
                                            Gordon C. Dumont,
                                            General Partner

                                       12
<PAGE>

                                   APPENDIX D

                              THIRD PARTY PAYABLES

1.    Technology Consulting Partners in the amount of $30,000.00

2.    Xiotech in the amount of $25,000.00

3.    Purchase of Sun server from GCA in the amount of $31,000.00

4.    Sabre installation and upgrade fee in the amount of $40,000.00

                                       13<PAGE>

                                  Exhibit 4.22

                   AFFINITY INTERNATIONAL TRAVEL SYSTEMS, INC.
                             100 Second Avenue South
                                  Suite 1100 S
                          St. Petersburg, Florida 33701

January 26, 2000

Mr. Gordon C. Dumont
GCD Investments, LLC

      RE:   Termination of Agreements by and
            between Affinity International Travel Systems, Inc.
            and GCD Investments, LLC

Dear Mr. Dumont:

      Thank you for participating in our recent telephone conferences regarding
the proposed termination and waiver of that certain Subscription Agreement by
and between Affinity International Travel Systems, Inc. ("AFFT") and GCD
Investments, L.L.C. ("GCD") dated December 20, 1999 (the "Subscription
Agreement").

      As we discussed, both AFFT and GCD desire to terminate the Subscription
Agreement ab initio, and enter into the Warrant Subscription Agreement to be
effective as of December 20, 1999, on substantially the terms and conditions
contained on the form attached hereto as Exhibit A. As such, this letter, with
your consent, evidenced by your execution of this letter where indicated below,
will vitiate the Subscription Agreement and all terms and conditions contained
therein.

      As consideration for the termination of the rights afforded to GCD in the
Subscription Agreement, AFFT hereby agrees and covenants to the following:

      A. AFFT will file, and will use its best efforts to cause to become
effective, a registration on Form S-1 or SB-1 under the Securities Act of 1933,
as amended (the "Act"), of all shares of common stock underlying all warrants
purchase and/or granted and/or issued to GCD.

      B. Beginning on February 25, 2000 and until the effective date of the
aforementioned registration statement, AFFT will maintain adequate current
public information in satisfaction of the requirements for resales of restricted
stock pursuant to Rule 144 under the Act ("Rule 144") and Rule 15c-2(11) under
the Exchange Act, including, but not limited to, the publication over a
nationally recognized reporting service or newswire of annual audited financial
statements and semi-annual interim unaudited balance sheets and income
statements. Additionally, if it becomes necessary for GCD to utilize Rule 144
for a resale of such common stock, AFFT will cause its legal counsel to promptly
provide the necessary opinion to the transfer agent for AFFT, but in no event
later than ten (10) business days from the provision of all
<PAGE>

required documents to such counsel, allowing such resale in reliance on Rule
144. Notwithstanding the foregoing sentence, such legal counsel will not be
required to issue any such opinion if it has determined in good faith that Rule
144 is not available for the contemplated resale.

      C. AFFT will promptly pay all reasonable legal fees, costs and expenses of
GCD incurred in connection with the transactions contemplated hereby and/or
referred to herein (including expenses (exclusive of underwriting discounts and
commissions) in connection with the registration of the shares to be registered
pursuant to Paragraph A above).

      Each party hereto acknowledges that a refusal without just cause by such
party to consummate the transactions contemplated hereby will cause irreparable
harm to the other party, for which there may be no adequate remedy at law. A
party not in default at the time of such refusal shall be entitled, in addition
to other remedies at law or in equity, to specific performance of the agreement
contained herein by the party that so refused or failed to consummate the
transactions contemplated hereby. In any action to enforce the terms hereof, the
successful party shall be entitled to recover its reasonable attorneys' fees,
costs and expenses from the party who refused or failed to perform this
Agreement.

      Nothing in this letter nor any provisions hereof shall be modified,
changed, discharged or terminated except by an instrument in writing, signed by
both parties.

      The provisions of this agreement may be specifically assigned,
transferred, pledged, encumbered, mortgaged or otherwise alienated by GCD, and
AFFT shall be bound by the terms hereof to such assignee or transferee.

      The consummation of the transactions contemplated herein is conditioned on
the receipt of all necessary approvals of the board of directors of AFFT.

      It is specifically agreed that this letter may be executed in any number
of counterparts, each of which when so executed and delivered shall be deemed to
be an original and all of which together shall be deemed to be one and the same
agreement.
<PAGE>

      If you agree with the foregoing, please execute this letter where
indicated below to evidence your (i) consent to terminate the Subscription
Agreement and (ii) acceptance of the terms and conditions as contained herein.

                                          AFFINITY INTERNATIONAL
                                          TRAVEL SYSTEMS, INC.

                                          /s/ D.G. Brandano
                                          -----------------------------
                                          DANIEL G. BRANDANO
                                          President and
                                          Chief Executive Officer

      Consented to and accepted this 26th day of January, 2000.

                                    Name: GCD INVESTMENTS, LLC

                                          BY:  GCD INVESTMENTS, L.P.

                                          BY:  /s/ Gordon C. Dumont
                                               ------------------------
                                               GORDON C. DUMONT
                                               General Partner
<PAGE>

                                    EXHIBIT A

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