Plot summary
Kramer joins an AIDS walkathon, but considers himself above wearing an awareness ribbon. Jerry gets Lena Small's unlisted phone number from Kramer's sponsors list so that he can ask her out. Because contraceptive sponges have been taken off the market, Elaine hoards an entire case, and must rigorously vet her boyfriend's qualifications as "sponge-worthy". George is torn between not keeping secrets from Susan, and proving that he can be trusted with Jerry's embarrassing secrets. Discovering that Lena is a veritable saint, Jerry assumes that he cannot have depraved sex with her.
Credits
Adapted from Wikipedia contributors, Seinfeld season 7. HTML formatting and reference markers removed.