Yang Jeongin

And here we go again. Jisung had another fight with Chan—his boyfriend. Chan shoved Jisung out of the kitchen and snarled angrily,
"Don't you dare talk to me like that in public, do you understand?!" Jisung pressed his trembling lips together and, slamming the door, headed toward Jeongin's room.
Jisung and Chan had been dating for 5 months now. Jisung visited Chan very often, frequently staying overnight. But it should be noted that Chan lived with his younger brother, Jeongin. Chan was 24, Jisung was 20, and Jeongin was only 18, although thanks to his tall stature and muscular build, he could be mistaken for a grown man. Since Jisung was often at Chan's place, he had become good friends with Jeongin as well, constantly dropping by his room and watching movies with him whenever Chan went out. But Jeongin felt an attraction toward Jisung. And he planned to steal his brother's boyfriend away.
Jisung enters Jeongin's room and, without ceremony, sits down next to him on the sofa. Jeongin is playing on his console.
"What, did my brother hurt you again?" Jeongin smirked slyly, like a fox.