Make the most of the opportunity

You feel a surge of excitement as you realize Caitlyn has fallen asleep. She's a heavy sleeper, so it will take a while for her to wake up. Your mother notices your gaze lingering on your step-sister's slumbering form. She raises an eyebrow, a knowing smirk playing on her lips.

"Enjoying the view?" she whispers, her hand coming to rest on your thigh. The touch sends shivers up your spine, your skin tingling beneath her fingers.

You swallow hard, your mouth suddenly dry. "Yeah," you manage to **** out, your voice barely audible over the sound of the movie. "She looks so... peaceful."

"How do I look?" Karma asks with some jealousy in her voice. She does a slow twirl, the sheer fabric of her top swirling around her toned thighs. The lacy edge of her thong is just visible above the waistband of her tiny shorts, a tantalizing glimpse of the red satin beneath.

Your hand trembles slightly as it rests on your mother's crotch. The heat of her skin seeps through the thin satin, and you can feel the dampness of her arousal beneath the fabric. She gasps softly, her hips bucking up against your touch.

"Oh," she breathes, her voice husky. "You're making me feel so good."

She leans in closer, her lips brushing against your ear. "I've been waiting for this for so long," she whispers, her hot breath sending shivers down your spine. "Ever since I found out about your little secret, I've been aching to touch you, to feel your skin against mine."

"We need to be quiet" you whisper "Caitlyn is right there".

"You're right, baby," your mother whispers, her breath hitching as your hand slides further up her thigh. "We need to be quiet."

She places a finger over her lips, pointing for you to do the same. Her other hand comes to rest on your knee, her nails digging into your skin through the fabric of your pants.