Kotomi and her boyfriend are experiencing a sexless relationship. She's on the verge of exploding with frustration towards him! In this situation, her boyfriend's best friend comes to stay with them. She acts coldly towards her boyfriend but smiles brightly at his friend. One night, while satisfying her desires by masturbating alone in the bathroom, she is caught in the act when his friend opens the door and sees her masturbating. In the awkward atmosphere, the man starts to seduce her, and she loses control of herself in the presence of a real penis and a real body after so long. The two of them have sex standing in front of the bathroom. Then, they move to the living room and have sex in all sorts of positions, with her screaming loudly from the thrusting! On the bed, Kotomi arches her back and writhes in ecstasy. He cums a lot of semen inside her... "My mind just went blank♥," she says with a satisfied smile, having finally had sex after so long and feeling her frustrations relieved.