Ah, you had that kind of scene in mind.
While incest isn't a fetish I mind too much (the Latis are into it after all), it's something I wanted to avoid with this game since it would mean extra things to keep track of.
That's why I've kind of been writing the MC to be specifically turned off by it, it's more or less the only thing he's not into. The Legends themselves would have no problem with it since in the games with Daycares, you can very easily get your Mons to inbreed if you choose to let them.
So short answer, no, I can't use this