Macy confesses to her stepsister Alexis that, even though she is engaged to be married, she is a virgin and has never even seen an actual cock in real life, only in research materials. Alexis tells her to put her research aside and she will teach her everything she needs to know. Alexis brings in a collared slave, balls locked in a shock collar, to show Macy what an actual cock is like. When Cameron, Macy's fiance, shows up, Alexis soon has his pants down - and shows Macy what a tiny dick Cameron has. Alexis tells Macy that there is no way this tiny dicked man will ever please her sexually.