Aiden arrives looking sexy as hell. Freya and Sera both try coming on to her, but Aiden does her best to shut it down. The girls just don't seem to be concentrating, though, so Aiden decides to take another approach. She orders the girls onto their hands and knees, then begins quizzing them. When Sera gets an answer correct, Aiden gets down and licks her pussy. When Freya gets an answer wrong, Aiden spanks her bottom.
When the study session winds down, Aiden tells the girls that they still seem to need additional lessons. They obediently go to the bedroom, where Aiden has them strip down to their thongs. She instructs Freya to lick Sera's pussy, then has Sera give Freya the same treatment. Watching the two girls eat each other out gets Aiden so hot that she has to slip her hand into her panties to masturbate her own clit.
Ever the instructor, Aiden shimmies out of that remaining scrap of cloth and tells the girls that it's her turn. Freya and Sera take turns lapping at Aiden's cream filled slit and sucking on her hard nipples. Aiden gives them both feedback amounting to them being very good with their tongues, especially as they work her towards cumming.
As a final exam, Aiden has Freay and Sera flank her on either side. Reaching out, she puts one hand on each girl's pussy to diddle them towards an orgasm. In return, Freya and Sera are responsible for Aiden's pleasure. By the time all three are moaning their completion, Aiden has decided that Sera and Freya have passed this test.