Urine-soaked siblings in secret
In the dimly lit bathroom, the siblings stand close, their hearts pounding with anticipation. The brother's hand trembles as he reaches for his sister's breast, cupping it through her shirt. She leans into his touch, her breath hitching. He grinds against her, his hard cock pressing against her thigh. She feels a warmth spread between her legs, her panties growing wet. He reaches down, pushing his hand into her pants, finding her wet folds. She gasps, her knees buckling. He lifts her onto the sink, her legs wrapping around him. He unzips his pants, his cock springing free. She looks at it, licking her lips. He pushes her head down, his grip tight in her hair. "Suck it," he demands, his voice hoarse with desire. She complies, taking him deep into her throat, her eyes watering.