any bl cheating by accident

I’m sorry but how do you cheat on accident? (⊙…⊙ )

uhm...i didnt think of that

yea, "oh whoops it just slipped in" (≧∀≦) how dose that happen?!

LMAOOO are you serious
I could see it if someone in the relationship is drunk or maybe sleeps with a twin, but I can't think of any off the top of my head.

What about dakaretai otoko?

http://www.mangago.zone/read-manga/dakaretai_otoko_ichii_ni_odosarete_imasu/

Takato san thought that he cheated on junta when he was intoxicated. But takato just slept with akagi (no sex)