Yuki was looking forward to having sex with her boyfriend, but she grew secretly annoyed when introduced to her boyfriend's friend. Learning that the man is a masochist, her boyfriend urges Yuki to dominate him. In the mood for a change, she starts fucking him while her boyfriend films, grinding her hips on camera. As the act progresses, she repeatedly cums under the masochist's thrusts—right in front of her boyfriend, turning it into a boyfriend-approved NTR scene.