This is going to be very perverted but could anyone tell me some yaoi manga in which the s...

http://www.mangago.me/read-manga/eroman_kami_to_pen_to_sex_to/

Or you might like this list http://www.mangago.me/home/mangalist/43075/ (mew :3 )

http://www.mangago.me/tag/Pee/ ??

i'm sorry, i accidentally clicked the "unlike" botton (︶︿︶)＝凸