Yaoi: seme is uke's brother's friend. He is dared to by his friends to seduce the uke

I wanna know too. Seems fun

http://www.mangago.zone/read-manga/koakuma_no_sanctuary/
One of the stories.

http://www.mangago.zone/read-manga/koutetsu_no_daitenshi/ (ch.1)

This one :) http://www.mangago.zone/read-manga/from_701_goushitsu/

Thxs so much guys