Threesome fuck with my roommate and her friend

Movie night with my roommate and her friend she invited. this is always or almost with us. on purpose i chose a pretty naughty movie. and it works. i can see that my roommate is excited. she struggles to hide it and rolls her hips like a bitch in need of a cock. she can't take it anymore and starts to fiddle with her pussy first discreetly and then very frankly. the pervert has put a sex toy in her pussy and is having a hard time keeping it in place. she takes off her panties and continues to masturbate like crazy then finally asks me to help her ...