The creak of the old couch echoes their rhythm, as brother and sister, lost in their own worlds, pleasure themselves in each other's presence. The girl's moans grow louder, her fingers plunging in and out of her wet pussy, her clit throbbing with need. Her brother, his cock rock hard, grips it tightly, imagining his sister's lips wrapped around it. Their eyes meet, filled with lust and longing, as they both come undone, their bodies shuddering with release, their juices dripping onto the couch, a testament to their forbidden desires.