Penny, who admits to missing Leonard in "The Roommate Transmogrification", accepts his request to renew their relationship in "The Beta Test Initiation". After Penny suggests having sex in "The Launch Acceleration", Leonard breaks the mood by proposing to her. Penny says "no" but does not break up with him. She stops a proposal a second time in "The Tangible Affection Proof". In the sixth-season episode, "The 43 Peculiarity", Penny finally tells Leonard that she loves him. Although they both feel jealousy when the other receives significant attention from the opposite sex, Penny is secure enough in their relationship to send him off on an exciting four-month expedition without worrying in "The Bon Voyage Reaction". After Leonard returns, their relationship blossoms over the seventh season. In the penultimate episode "The Gorilla Dissolution", Penny admits that they should marry and when Leonard realizes that she is serious, he proposes with a ring that he had been saving for years. Leonard and Penny decide to elope to Las Vegas in the season 8 finale, but beforehand, wanting no secrets, Leonard admits to kissing another woman, Mandy Chow (Melissa Tang) while on an expedition on the North Sea . Despite this, Leonard and Penny finally elope in the season 9 premiere and remain happily married . By the Season 9 finale, Penny and Leonard decide to have a second small, unofficial wedding ceremony for their family and friends  to make up for eloping. In season 10, Sheldon moves into Penny's old apartment with Amy, allowing Penny and Leonard to finally live on their own as husband and wife. In season 12, Penny announces that she does not want to have any children and Leonard reluctantly supports her decision. Later, her old boyfriend Zack and his new wife want Leonard to be a surrogate father to their kid since Zack is infertile. Penny reluctantly agrees to let Leonard donate his sperm. However, when she tries to seduce Leonard despite knowing he has to be abstinent for a few days, her visiting father, Wyatt, points out to Penny that her own actions suggest she is more conflicted over having kids than she lets on, to which she admits she feels bad about letting him and Leonard down if she goes through with never having children. He says that despite her flaws, parenthood is the best thing that ever happened to him and he does not want her to miss out, but he says he will support her no matter what she decides . Leonard eventually changes his mind about donating his sperm , not wanting a child in the world that he cannot raise. In the series finale, Penny reveals to her friends that she is pregnant with Leonard's baby, and she changes her mind about not wanting children.
Penny, who admits to missing Leonard in "The Roommate Transmogrification", accepts his request to renew their relationship in "The Beta Test Initiation". After Penny suggests having sex in "The Launch Acceleration", Leonard breaks the mood by proposing to her. Penny says "no" but does not break up with him. She stops a proposal a second time in "The Tangible Affection Proof". In the sixth-season episode, "The 43 Peculiarity", Penny finally tells Leonard that she loves him. Although they both feel jealousy when the other receives significant attention from the opposite sex, Penny is secure in their relationship , even when he leaves on a four-month expedition to the North Sea in "The Bon Voyage Reaction". After he returns, the relationship blossoms over the seventh season. In the penultimate episode "The Gorilla Dissolution", Penny admits that they should marry and when Leonard realizes that she is serious, he proposes with a ring that he has been carrying for years. Leonard and Penny decide to elope to Las Vegas in the season 8 finale, but beforehand, wanting no secrets, Leonard admits to kissing another woman, Mandy Chow (Melissa Tang) while on the expedition . Despite this, Leonard and Penny finally marry in the season 9 premiere and remain happy . By the Season 9 finale, Penny and Leonard decide to have a second wedding ceremony for their family and friends , to make up for eloping. In season 10, Sheldon moves into Penny's old apartment with Amy, allowing Penny and Leonard to finally live on their own as husband and wife. In season 12, Penny announces that she does not want to have any children and Leonard reluctantly supports her decision. Later, her old boyfriend Zack and his new wife want Leonard to be a surrogate father to their kid since Zack is infertile. Penny reluctantly agrees to let Leonard donate his sperm. However, when she tries to seduce Leonard despite knowing he has to be abstinent for a few days, her visiting father, Wyatt, points out to Penny that her own actions suggest she is more conflicted over having kids than she lets on, and she admits she feels bad about letting him and Leonard down if she never has children. He says that despite her flaws, parenthood is the best thing that ever happened to him and he does not want her to miss out, but that he will support her no matter what she does . Leonard eventually changes his mind , not wanting a child in the world that he cannot raise. In the series finale, Penny is pregnant with Leonard's baby, and she has changed her mind about not wanting children.
D
enough
R
to send him off on an exciting
, even when he leaves on a
R
without worrying
to the North Sea
R
Leonard returns, their
he returns, the
R
had been saving
has been carrying
R
an expedition on the North Sea
the expedition
R
elope
marry
R
happily married
happy
D
small, unofficial
A
,
R
to which
and
R
goes through with never having
never has
R
he says he
that he
R
decides
does
D
about donating his sperm
D
reveals to her friends that she
R
changes
has changed