Marta and David, cousins bound by blood and desire, find themselves alone in the cramped, sunlit attic. Marta, her heart pounding, begins to touch herself through her denim shorts, imagining David's strong hands on her body. David, noticing her arousal, feels his own cock stir. He watches as she slips her hand inside her panties, fingers teasing her wet slit. Unable to resist, he joins her, stroking his hardening dick over his jeans. Their eyes meet, filled with lust and taboo, as they continue to pleasure themselves, their bodies aching for more.