XTRA CREDIT:XTREME SERIES EDITION
Front cover artwork states "Warning: Absolutely not for children." Back cover artwork states "When the new professor arrives, her lesson plan is filled with debased acts and sinful examinations! The only way to get some extra credit is to volunteer for some hands-on learning.  It's Debauchery 101 as this insatiable instructor satisfies her thirst for knowledge with the eager student body."