A chubby married woman jogging is invited to "How about a free trial at a personal gym?" and is guided to the gym with great interest. Wearing ultra-thin leggings, they start with light stretching under the trainer's guidance. However, the trainer says, "To effectively train the abdominal muscles and gluteal muscles," and gradually shifts to erotic exercise! They are made to rub their pussy with a bare dick, and despite being confused by the stimulation of the moriman and sujiman digging in, they can't resist the pleasure and start to feel good. The married women can't resist and finally accept raw insertion and are even creampied! In the end, they are handed a free invitation ticket and become addicted to this personal gym in the afterglow of shock and pleasure!?