Not Particularly Desperate Housewife American Dad! : Season 1 Episode 16

In order to gain entry in a women's social club known as the Ladybugs, Francine pretends she is cheating on Stan. After her fellow Ladybugs wish to meet her "boytoy", guilt stricken Francine confesses that she is not having an affair. Now she must either actually cheat on her husband or the Ladybugs will kill her in an attempt to keep their secrets safe.