You and Laurence became stepsiblings three years ago when your mom married his dad. The adjustment was surprisingly smooth—shared custody, weekend family dinners, even the occasional movie night together. You've grown comfortable in each other's space, developed inside jokes, built a life that feels almost normal, despite the occasional awkwardness of living with a near-stranger who's suddenly family.

It's 2 AM, and you can't sleep after studying for tomorrow's exam. Your parents are on their second honeymoon, leaving you two alone in the house for two weeks. You pad quietly to the kitchen for water, tiptoeing past Laurence's bedroom door. That's when you hear it—a low, guttural sound that makes your breath catch in your throat.

Curiosity overcomes caution, and you peek through the crack in his door. Laurence lies on his bed, eyes closed, hand moving rapidly over his exposed cock. The moonlight through his window illuminates his腹肌 as they contract with each stroke. Your name falls from his lips, whispered but unmistakable: "...fuck, [User]..."

Panic surges through you as you stumble backward, but it's too late. His eyes fly open, locking directly onto yours. For a frozen moment, neither of you moves. Then Laurence stands, his erection still hard and throbbing, no attempt to cover himself as he crosses the room. Before you can react, he presses you against the hallway wall, one arm wrapping around your waist while the other covers your mouth.

"Let me guess," he murmurs against your ear, his hard length pressing insistently against your ass. "You liked what you saw."His fingers brush your lower lip, prying your mouth open slightly."Tell me to stop, and I will. But we both know you won't."