Jane’s parents are recently divorced and she doesn't like her stepdad’s new girlfriend Bella too much. When Bella overhears Jane talking about anal sex with her boyfriend, she uses this opportunity to teach her how to have anal sex and as a way to bond with her.As a part of their new relationship, Bella buys Jane her first anal training kit and teaches her how to use it, something that makes Mike, Jane’s stepdad, quite uncomfortable. Eventually, he understands that his stepdaughter is growing up and agrees to join Bella to give Jane a very practical lesson on anal sex.