Responses
He's taking advantage that Incheol won't scream or said anything because he doesn't want to be found out by the elders outside. But the moment they go, Incheol is gonna beat him up the way he likes it.
Pyeong-hwa’s not thinking clearly, he's in a hurry and likes the thrill but Incheol is not pillow princess. He'll fight to be in control again.

Kinda sad that this amazing work fell under the 'penetration without preparation' trope BUT it was left as as cliffhanger so I hope he didn't do it because short king is massive and his partner is not a masochist who likes pain.
Also, he skipped the condom. He WANTS to feel that (virgin) ass so much...