A girl cannot orgasm with her BF and has to fake it every time, later it gets implied she’s sort of cursed with several spirits of sexually frustrated women. From the hentai F3 series.
http://www.xnxx.com/video-6oxjdf1/hottie_hentai_girls_in_hardcore_action
Thank you for this reminder – I do love this video, although that’s just a bit of it, here’s the full episode:
http://myanimeron.net/2013/01/f3-episode-1-uncensored/
It has everything; orgasm denial, hypnotism, anorgasmia, mad sex scientists, robo-tentacle sex and let’s not forget the fact her ‘sister’ is the main protagonist…
I love Japan.