The siblings, drawn together by their shared secret, can't help but explore each other's bodies. The brother's large hands trace his sister's curves, pausing at her breasts, thumbs brushing against her hardening nipples. She gasps, her pussy growing wetter by the second. She reaches down, wrapping her fingers around his thick, hard cock, feeling the heat and the pulse of life. He grinds against her hand, his breath hitching as she starts to stroke him, their bodies inches apart but not yet touching, the tension almost palpable.