Mysterious Girlfriend X.
Look it up.
It's on Crunchyroll.
I managed to get through 10 episodes before my "I've had enough" meter red lined.
I have a pretty high tolerance for blood and gore. I mean, I made it through Elfen Lied ok. But this show's premise is just gross. The story was really unique so I pushed through. But everyone has a limit. Episode 10 was that for me. I'd really like to see the story played out but the grossness hit a new level.
I'll stick with blood and gore and gratuitous "thanks for the mammary" shots.