A young woman with a unique constitution who gets excited when her armpits are seen is making her first photoshoot. (Okubo Yayoi, 10musume_040423_01)

Yayoi Okubo is an office worker. This is her first time filming an AV, so she's a little nervous. She looks a bit like a bar hostess and seems to really enjoy sex. Her armpits are an erogenous zone; she gets excited just from being looked at, making her a rather unique girl. Although shy, she quickly undresses and exposes her private parts very openly. Enjoy the passionate, pleading sex act of this sexy older sister, Yayoi Okubo!