A curious 18-year-old, new to the world of mature desires, finds solace in the forbidden fruit of her own home. She sneaks into her brother's room, eyes widening as she lays eyes on his throbbing, untouched cock. Tentatively, she wraps her fingers around its length, feeling its heat and pulsating life. She strokes softly, her heart pounding, as she imagines what it would feel like to have it inside her.