>>281273922
Reminds me there's a doujin like that.
Guy fantasizes with being cucked and it seems easy because his GF is a gyaru or something, but she is actually very loyal so the guy never asks about it.
The doujin was kinda bland, only runny point was the irony that FMC had a friend that was a slut and was cucking her BF.
...funnily enough the author had only made NTR doujins before that