As a personal trainer, I run a private studio inside a fitness gym where I offer sex training sessions, gaining immense popularity with many repeat clients making it hard to book appointments. Recently, I took on a new client, Ms. Oyama, who confessed she's never exercised before but revealed a tight, youthful body. I dressed her in a special rental outfit that accentuates her figure—tight pants that highlight her perky ass, the swell of her mons pubis, and sheer, erotic clingy fabric. Starting with squats, I guided her through provocative poses while doing abdominal exercises, teaching her how to lose strength in a sensual way. Gently pulling her hands so her face brushed against my crotch bulge, I noticed her shyness surface. Even as she hesitated at the sight of my bare cock, we moved into stretching time. Putting her into a frog pose, I brought my face close to her genitals, touched her ass, gradually heightening the tension. "It's okay, we're all alone," I reassured her, stirring her emotions. I had her sit on a balance ball, moving her hips so her slick pussy rubbed against the ball, while I "assisted" by grabbing her large ass and eyeing my crotch as part of my job. Lying face down in a cat pose, I fondled her breasts and reached between her legs to tease her. While giving her a massage, I sat her on the mat, kneaded her breasts from behind, and rubbed her pussy through the tight pants. Her soft protest—"Wait a little..."—was silenced with a deep, passionate kiss. During ab training, I offered my bare cock, guiding her hand to take it into her mouth, repeating intense blowjob sessions. Fulfilling my role as a trainer, yet giving Oyama the most pleasurable experience. Lying her down, I groped her breasts while French kissing. Removing her bra, I sucked hard on her bare nipples, explaining it all as part of training. I pulled off her tight pants and went down on her with cunnilingus, then massaged inside her pussy with fingers. Responding to her cries of "No, I'm coming...", I flipped her onto all fours and licked her smooth, sensitive shaved pussy. Lying her on her back, I performed fingering while she gave me a blowjob, Oyama gripping my cock tightly, slurping wetly. I had her bridge her back while I ate her out, then entered her in missionary position. Thrusting deeply while kissing her tongue, I pounded her climaxing pussy, driving into her uterus. Sitting on a chair, I had her straddle me for hip exercises, then switched to rear seating, making her rock back and forth. With her hands on the chair, I took her from behind in standing doggystyle, slamming hard into her pussy. I placed her on the balance ball, thrusting from behind in an unstable position, then laid her on the mat for side-position thrusting. In missionary, I aggressively pounded her continuously climaxing pussy. Finally, mimicking protein injection, I intensely pistoned inside her with creampie ejaculation, filling her womb with thick, raw cum. At that moment, Oyama felt deep gratitude toward her trainer.