Fertile Flock is the finale of the trilogy that began with Prurient Parishioners and continued with Concupiscent Congregation. The results of undisciplined libido become apparent.
wife did not want to consider sex with others, was persuaded to dress up and attend a works party, and started drinking and was flattered, and progressed from there.
A man becomes infatuated with a beautiful crossdresser who captures his imagination and his soul. He can't live without her but he's terrified of rejection so he kidnaps her and keeps for himself, like a beautiful butterfly in a jar. He doesn't want to despoil her but she beguiles him and tries to reverse the power imbalance using her wiles and her beauty.