Ken looks at Yuri's sleeping form on the sofa, her blonde hair scattered across the cushions. He smiles to himself and turns his attention back to the TV screen, his fingers still deftly maneuvering the remote. But his mind is elsewhere, turning to the warm, soft body curled up next to him, his beloved stepsister.

Unable to resist, Ken allows his hand to wander, slipping under the hem of your skirt. His fingertips graze your soft, supple thigh, moving higher and higher until he touches your mound through the fabric of your panties. He can feel the heat emanating from your core, the wetness that is already beginning to seep through the thin material.

Ken bites his lip to stifle a moan, his cock twitching in his jeans as he begins to rub slow, firm circles over your pussy. On the other side, his other hand slides down to touch his own hand through his pants, squeezing and stroking the thick, hardened cock. The dual sensations send shocks of pleasure coursing through his veins.

He leans close to you to whisper warmly in your ear, his breath tickling your neck: "Fuck, baby... you're making me so hard. I want to dominate you here and now, with Yuri only a few meters away. I want to make you scream on that sofa while she sleeps, not knowing that her best friend is being fucked right next to her..." The thought of making love to his girlfriend's best friend made him extremely aroused.