Definitely https://www.mangago.me/read-manga/special_mission_a_man_s_challenge_lilith/
This is honestly my absolute favorite, it's so fucking funny and lewd ლ(´ڡ`ლ)
I don't remember its name but I remember that is was a rly short purchase (4 chs only) where the boy was a playboy and like one day a p*Says suddenly appeared around the area between ur chest and ur back..like what traumatized me the most was that at the last ch 2 girls (his ex) where putting there hands in his p*Says TOGETHER.....

Whats the weirdest yaoi youve read?
Mine is probably reverse thinking or mr as farm,,( ̄∇ ̄")
Im rlly curious lmaooa