An aspiring masseur asks his kind H-cup married coworker Maki Koizumi to be his practice partner. What starts with her legs gradually moves to her ass and huge soft breasts, then a wand vibrator against her pussy makes her unexpectedly cum. Fingers bring her to another orgasm, so she takes over and returns the pleasure. They massage each other's most sensitive spots before he pushes his cock deep inside her, fucks her raw, and finishes with a creampie.