So, okay, we know Hyuk plays dirty, he LOVE to play dirty because it's a source of fun for him.
That's why he would be the same with you.
he has absolutely no sense of shame, so he would lift up your skirt in a public place or even pull the strap of your bra. so hard that it would slam against your skin.
ordinary sexual intercourse? no, no. This asshole definitely has a tendency to sadism. This does not mean that he will beat you or whip you, but Hyuk could slap you with his hand on your thighs, enjoying how red streaks form on you with each new blow.
And he would also use dirty words.
Hyuk looks like a quiet guy, but he has a pretty talkative mouth that will pour out so much dirt that your ears will turn red every single time you remember.
"Have you finished yet? You're pathetic"
"too sensitive for my fingers? You're the one who couldn't get off them."
"I know you're a brat. You're a real brat, and people like you need to be raised exactly the way they're used to."
"Do you want to play? It's going to be a game by my rules."
Hyuk also wouldn't hesitate to bite you, hard, to the point of pain, just to make you scream.
Hyuk would love to see you cry. maybe the first time he just went overboard and you feel really hurt. he would have stopped, but it's hard to miss the fact that he looked at your tears for so long, and smiled while soothing you.
overstimulation
Delaying the time of your arrival, just to torment you
And by the way
it is unlikely that he cares about protection during sexual intercourse, so now this is your problem and area of responsibility.