a good example would be the No Bra manga, which i read up to chapter 24-ish (when the group translating it stopped or something) and is actually pretty good, focuses more on the main characters conflicting feelings regarding his best friend who cross dresses (where as the friend sees the main character as the only one for him, hence why he started cross dressing) from what i've read
Always loved Rin´s embarrassed yet fcking aroused face on this. Bet you could peel her underwear off and throw em against the wall........and they would stick to it!
Orin-chan, could it be that this is what one might call BL?
Boys Love.