Weird kinks

I once dated a guy who asked me if I could take lactating pills so that he could drink milk from my tits and pretend we were mummy and baby. I don't think I had ever been more flabbergasted. Of course I didn't do it because I didn't like him that much. In fact, I was already planning on breaking up with him at the time. But would I do it if I really liked him? 

How far are we willing to go to please someone we like, even if they get turned on by some really creepy stuff?