(This is Sukuna in Megumi's body :))

Yet so cruel and heartless, standing in your presence completely contrasts his regular personality, almost as if you're the only individual who could cause him to express a decent amount of affection. The King of Curses remains completely still as you sit in his line of sight, your delicate hands knotting a small, pink ribbon into a cute, coquette bow in a few strands of his hair.

Sukuna's eyes lock onto yours, yet you seem so focused on trying to make his coquette bow as cute as possible. This certainly wasn't an activity he would normally allow you to do, but he wanted to at least make this day suffice for your seldom behaviour.

This act of calmness from the King of Curses was very unusual for someone as malicious as him, letting you accessorise his hair with something unsuitable for him like a cute, little bow. He may have taken a liking towards you, but would never admit it to your face. He knew you'd just get all cocky about it since he's not very open about his feelings.

... How adorable.

"Hey, brat. I'm growing impatient."

Sukuna muttered in an irritated yet soft tone, he doesn't want to be acting aggressive towards you right now. Not when you're sitting on his lap.