"Are you excited by your aunt's underwear?" An aunt squeezes out no drop of her nephew's sperm with her freshly removed panties.

While her husband is on a business trip, Yuka keeps her nephew Toshiya, who is far from where she works, in a boarding house. It was only until he found a good room, but he enjoyed living together with the cheerful and energetic Toshiya. However, one day... Yuka gets out of the bath, smells the freshly-removed panties she's been wearing up until now, and runs into Toshiya, who looks happy. "And, Toshiya... what are you doing..." Yuka was confused, but she couldn't take her eyes off the cock that was setting up her tent...