Responses
woa! I guess I found it:
http://www.mangago.me/read-manga/choco_strawberry_vanilla/
No one in there has a shaved head though..
My memory betrayed me...
Its about a guy 1 (pretty sure he has shaved head) fall in love with a beautiful guy, and reallys fall in love with him, he's very chessy. When he (guy1) goes to the guy's apt he discovers a friend/boyfriend with a dark aurea that claims he has to sex with both, and that's the ultimate rule, only threesomes And the manga goes on how they learn to share this 3 bittersweet relantionship, where the two that hate which other learn to "love", and even endep up having sex togheter