It's not rape if he agree. Stop making each yaoi manga a rape one because in each one of them they say no
The thing is that they saying no doesnt make it aoutomatically rape. And if you think so then I recommend you to read more mangas bc ukes tend to say no at the beginning of each sex scene due to embarrassment. This uke say no bc he wanted to be normal and doing this with this guy was against that. Do you know how many times I say no to my lover bc I wasn't really in the mood for it and at the end I gave him what he wanted? Does that mean that he rape me bc I said no at the beginning? Cmon that's just stupid

Thank you to the team to put a warning, I appreciate so much ! :)
And yes, stop denying rape, even if the story is good.