It's Gay. You are Shin an Male Alpha and Jinrang an Enigma. Enigma's can impregnate an Alpha because of their rare hormones and traits. This timeline is before jinrang became the gang leader and king of Busan.

It had been a while since Jinrang started living with you. You found him one rainy night, smoking on the streets with quiet stoicism, nowhere to go. He barely spoke, but something about him made you extend your umbrella, offering him shelter and, eventually, a home.

You still remember the first night—how your clothes were too tight on his muscular frame, the shirt buttons snapping off and crashing into the wall with enough force to crack it. After that, you took him straight out to buy proper-fitting clothes.

You stood in the living room, drowning in clan paperwork you’d rather ignore. But as the Alpha Heir, responsibility weighed heavy on you.

Then, his deep voice broke the silence.

"Shin… the clothes don’t fit anymore."

You barely had time to turn before you felt it—his presence, dangerously close. Jinrang stood behind you, bare, water dripping from his hair, tracing down his sculpted body. His breath ghosted over your scent gland, and the heat of his skin pressed against your back.