Big-assed goddess Mizuki Yayoi teases a cock on the verge of ejaculation with a slow grind, and when the cock calms down, she drives it to the brink of explosion with an explosive pounding piston! Sometimes she slams her beautiful ass hard against the cock, sometimes she twists the tip of the cock to give it a pause, and she torments the cock that can't hold back and wants to cum to the limit! After going back and forth on the brink of ejaculation, she violently releases all the semen that has accumulated inside the body! In the missionary position and doggy style, Mizuki herself swings her hips in a dominant relationship, but can the loyal cock really hold back from ejaculating? 3 intense scenes included!