ff sorry
Almost had heart attack, although you wont see until the end
http://www.mangago.me/read-manga/pink_napoleon_fish/
Really short... And really caught me off guard XD
http://www.mangago.me/read-manga/sweet_trap/
Oh you're in for a treat.
Basically everything by Mishima Kazuhiko are like that. It's her speciality.
Seiheki Strike is her newest addition.
http://www.mangago.me/read-manga/seiheki_strike/
Have fun~
I mean, you see the caracter an you think, mm he is the top, and at the end, he is the bottom, that type of yaoi