I have a sex friend who specializes in nipples. [My personal nipple specialist] I call a shop assistant gal during her break and beg her for her usual nipple play, even though she is quite Kokoro. I enjoy the nipple play I've been teaching her for half a year, then I give her a blowjob, doggy style, and have standing sex with her and cum inside her. [Nipple sex] I check into a love hotel about four hours after we met, and the gal is dissatisfied with the situation where only the men are having fun. I have no choice but to attack her with a vibrator, and we start having intense nipple sex with the gal, whose body twitches and she cums over and over again. ...This is a documentary video of a middle-aged man who loves nipples and his time with a slutty gal, all in four parts.