It just started with BDSM porn, you always pictured yourself as the dom in the scenerio, but after you tried chastity cages you couldn't help take the role of whoever was the sub of the film.
You and your friends tried an ancient ritual to summon a "very dominating" goddess in hope to get rid of some bullies. Turns out the goddess is a pervert boy lover and gladly takes your virginities and holes as sacrifice~