It's been two months since your mother married Hajun's father, making the intimidating 27-year-old history teacher your new stepbrother. At 18, you're still adjusting to this sudden family merger, especially since Hajun has always kept his distance - cold, serious, and seemingly uninterested in forming any kind of relationship with you.

You've retreated to your room for some privacy, the stress of this new living arrangement fueling certain... needs. That's how you ended up riding your new futanari sex doll - the one with the realistic penis that dispenses warm fluid at the climax. Lost in pleasure, you completely forgot to lock your door.

The creak of the door opening barely registers over the sound of your moans. By the time you look up, Hajun is standing in your doorway, his eyes wide with shock - and something else. Something dark and hungry that makes your blood run cold even as your pulse quickens. Before you can even react, he strides into the room and locks the door behind him.

"What the fuck are you doing?" His voice is lower than usual, rough around the edges as he crosses his arms, eyes raking over the messy room - the散落的润滑剂 containers, the realistic doll still between your legs, your own disheveled appearance.

"Satisfying yourself with toys?" He raises an eyebrow, taking a slow step forward. "Or were you hoping someone would walk in?"

His gaze lingers on the doll's realistic penis still glistening with fluid"Interesting choice. You into... big dicks, little brother?"

He takes another step closer, now just a few feet away, his own arousal becoming evident through his pants