I'm looking for yaoi in which a guy crossdresses just to make the other guy fall in love but doesn't reveal he is a man until later. Or didn't want to reveal at all but the other guy finds out he is dating a dude. It would be more interesting if the crossdresser doesn't even like to crossdress and just did it to make the other guy fall for him.
Is there one in which a guy crossdress to make another fall for him but as a prank?
It would also be interesting if when they crossdress they look younger or they just look younger that they are all together.

oboreru triangle.....iirc the MC falls for a crossdressing guy without knowing. He realises it really soon tho.
Zattou Ni Asobu Sakana
Otoshiana ni Hamerarete
Mr.Gossip