The physics of that are creeping the hell out of me no matter how you look at it. Judging by what you can see that girl is turned in to and inanimate giant tit with only a nipple, vulva, & anus. As such one has to assume food energy absorption is now carried out by the vagina, in which it eat semen. However the complete lack of a nose means it can't breath; so no lungs; which mean oxygen is absorbed through skin; however not enough; so small more primitive heart; no higher brain function; effectively you've killed the girl. And that sir is why this is creepy. Hell even if she retained her brain it seems creepy.