Ava and Serena have been struggling with their art assignment. The young schoolgirls need to paint a portrait of a naked man, but they don’t really know what a guy’s junk looks like. Meanwhile, the girls’ dorky stepbrothers Axel and Elias are talking about locker room stuff on the couch. They are absolutely convinced that they have bigger dicks than their classmates, and they are bragging about it. Serena and Ava overhear the boys’ conversation and come up with an idea: what if they used their stepbrothers as nude models? Though a bit creeped out about the idea, everyone’s on board, so the guys show the ladies their dongs. However, Axel and Elias are a bit shy, so it is up to the girls to make those penises become fully-fledged boners. The art assignment becomes a horny fuck fest as Ava and Serena realize how tasty their stepbros’ dicks are, eager to test the boys pussy-pounding abilities up next.