35-year-old stay-at-home wife Sae is hooked on kickboxing after starting it for weight loss. She ended up in a casual relationship with her instructor, and their usual routine is to hook up at a hotel after gym workouts. This time, her old friend, muscular white guy David, has made an emergency visit from abroad. They're going all out with a crazy muscle exchange 3P, aiming for multiple orgasms! The intense physical battle between their sculpted muscles is truly something to behold... A chaotic 3P with power and speed driving them to insane climaxes! This is pure madness! [Includes unreleased footage from amateur floor item hmdnc740.]