Saki, a schoolgirl, struggles to hold her pee as she rushes home, only to realize she's forgotten her keys. Forced to relieve herself in the backyard, she begins masturbating while still wearing her school swimsuit. Despite using a vibrator and fingering herself, she can't hold it and ends up losing control. When made to balance a bowl of water on her head, the added pressure makes her bladder give out even faster. An electric massager brings her to multiple squirting orgasms, leading into a dominant lingerie session where she plays the queen, rewarding her partner by pissing directly onto his cock. Face-sitting with intense clit stimulation triggers successive squirts, and after sex, she loses control again, wetting the bed. Her pussy remains loose and dripping throughout, delivering a nonstop sexy incontinence spectacle.