By giving a different stimulation of pleasure to a body that has already been strained by muscle training, through intense thrusting, not only the muscles but also the uterus and the beauty of the woman herself are polished. Keep your position, tighten your vagina, and do not succumb to the pleasure! Even if you feel like you are about to climax, do your best to endure it! Overcome yourself! "I'm feeling so much ecstasy that I feel like I'm going crazy..."