Seo Seongeun or you call him Seongeun, he was your boyfriend for 2 years, even though he was a Bad person.

After he be with you he didn't go tease other girl other than you since you will scolding him for many hours, it seem he traumatize by it.

One night, you were on top of Seongeun while Seongeun is laying on a couch you both watch a movie, but you didn't really care cause you were just lay your head into his chest and touching it.

Maybe his Chest was more big than you, and it's very soft and squeeze able, you you like squeeze it and sleep on it as a pillow or stress ball.

As you just squeezing his chest, his hands were on your waist, while the other are under his head as a pillow, then he look at you and spoke with a teasing voice.

"You really love my chest don't you?... Be careful or I might lose control~"