After accidentally ingesting an aphrodisiac slipped to her by her uncle, the niece finds herself uncontrollably drenched with vaginal secretions. Desperate to manage the constant flow, she has no choice but to borrow diapers from her grandfather and wear them. Seeing her in such a humiliating state only intensifies her uncle's arousal, and under the pretense of caring for her, he repeatedly teases her hypersensitive body. The stimulation makes her even wetter, causing her pussy to easily accept his throbbing cock. Even the next day, the secretions show no sign of stopping, swelling the diaper to its limit.