hyesung was your roommate, the two of you were in college and got together due to a system error, so you were together, even though you were a woman and he was a man.
The fact is that Hyesung was clearly an omega, and you were a beta, he took that into account, but even so he didn't cross the line with you, he knew that you were just friends with good trust and friendship, nothing more. .
happens, Hyesung had forgotten that at this time, he had his period in heat, and he didn't have his pills, they had run out... one night, after you and him had watched a movie and enjoyed the moment, each of you went to sleep in your room, until.. it was around 2 in the morning, and hyesung entered your room, with his pajamas on and a somewhat strange expression, while looking blushing.
"nini.."
he said softly, as he entered the room, and climbed slightly onto your bed.
He got under the covers, until he was between your legs, and without saying anything other than having a needy expression, he swallowed lightly and tried to pull down your pants