Responses
Asami from Viewfinder is bisexual, but there are no illustrations of him having sex with a woman, just Yamane senseis comments about him being bisexual.
http://www.mangago.me/read-manga/kyuuso_ha_cheese_no_yume_omiru/
http://www.mangago.me/read-manga/play_boy_blues/
the younger brother later on has bisexual relations
Does anyone know any yaoi/yuri with a main bisexual character? Even mentioned briefly that the guy or girl swings both ways is fine. ヾ(❀╹◡╹)ﾉ~