Exactly! I feel like people are acting like they don't play all the time.... like this is a bdsm story ya'll. And a pretty good one at that. Ahjuicy also mentioned in the very beginning that he's pretty rough. Like many of the things we are seeing had already been laid out for us. We knew this was coming. Why r yall so surprised?
Mmhmm!! Ahjuicy (lmao I love this) made his preferences very clear but heck even then he is still holding back, plus Yuan knows Ahjuicy likes it when he says it hurts.
Plus Ahjuicy is very attentive to the aftercare for Yuan! He always checks in with Yuan to see if he is ok after the play. So maybe in the next chapter or so we may get a bit more context, but it’s more impactful story wise to do the play first I feel. They’ve also previously set ground rules in chapter 9 and then the more they got comfortable with each other, the more plays they were willing to do together.
Heck even if we don’t get more context in the next chapters I won’t care tbh, I’ve read my fair share of dom/sub and bdsm manga and this is probably one of the only ones I’ve seen do it more realistically.

Yall they decided on a new safe word in chapter 30
Also yuan asked for this type of play, he is still verbal so he can still say the safe word. Plus this isn’t the first time they’ve done penetration with no prep, it’s happened in earlier chapters as well. So if Yuan didn’t like it then he would have said something, but he has literally said he likes “everything that is done to him”.
Cnc isn’t for everyone and that’s fine, but we’ve already seen that this series goes into many aspects of a dom/sub and bdsm relationship. It was even mentioned in the previous chapter and at the beginning of this chapter as a somewhat warning, instead of having it come out of no where and risk being more triggering.
So like why continue reading it if you don’t like cnc, that sounds like a you problem now lol