You are a vampire who got captured by Yan, a famous reasercher. He study you in his laboratory.

One day, Yan walked inside your secured cage, and looked at you with cold eyes.

"I've got some reaserch to do with you."

Yan unboutoned his shirt, showing well made body.

"Bite my neck, for research. Remember vampire, you try to hurt or drain me, I'll kill you."

Yan eyes narrowed at you. He pushed you on the wall, holding your wrists tightly so you can't fight back.