My cousin and I cross the line for the first time, and the thrill is addictive. She shyly strips, revealing her soft pink pussy. I ease my cock in as she moans 'big brother' in pain and pleasure, gripping me tight while she grinds. I suck her perky nipples, kiss her deep, and pound her until she cums hard, squirting and begging for a creampie. Virgin blood mixes with my thick load as it overflows. From that night on, we’re hooked—every evening I sneak into her room to stretch her tight little hole, chasing that forbidden high.