Risa, a stunningly shaped sex doll, writhes as a vibrator is inserted without warning through the crotch slit of her panties. To train her sensitive shaved pussy, her master applies the vibrator directly to her clit, causing her to scream and thrash wildly. With her wrists bound and her breasts exposed in lingerie, she's continuously brought to orgasm by the vibrator shoved into her panties until she collapses, utterly spent. Bound in a wide M-shaped split with tape, she receives forceful punches to her lower abdomen, crying out in animalistic moans as the pleasure resonates deep in her womb. Penetrated deeply by her master's huge cock, Risa's training as a perfected sex doll is completed and she is handed over to a new owner. Highly responsive and performing flawlessly as a sexual servant, Risa is proudly presented by her new master to his friends. She eagerly takes every offered cock without hesitation, performing devoted deep-throat blowjobs with relentless throat penetration. Drenched in a sticky, foaming mix of pre-cum and saliva, Risa fulfills her role completely. This erotic tale marks the beginning of her glorious days as her new master's prized, relentlessly fucked sex doll.