At first glance, they seem to be just any other cohabiting couple. The girlfriend is sadistic and the boyfriend has a masochistic sexual tendency. The boyfriend shows his love by devoting himself to her. The girlfriend feels love when he devotes himself to her, and in return, she returns the love in her own way. It's certainly not normal in the general public. But is that strange? To these women, this is just a completely normal part of their daily lives. Let's take a sneak peek into their love nest.