In the confines of their shared home, a horny brother and sister, both virgin, find themselves drawn to each other, their eyes lingering on curves hidden beneath clothing. One evening, as they're both home alone, their curiosity and lust get the better of them. They start with innocent touches, exploring each other's bodies with tentative fingers. The sister gasps as she feels her brother's hardening cock, and he groans at the warmth of her untouched pussy. Their first time is clumsy but passionate, a dance of discovery as they learn each other's bodies and pleasures.