Mari Koharu, a sex doll in a revealing lingerie, writhes with her slender body, her pleasure reaching its peak as her master manipulates the vibrator. Having fully transformed into a female, Mari eagerly sucks on her master's massive cock, her mouth wide open as she drools. Bound and unable to move freely, she desperately thrusts her hips, her master's fingers probing deep inside her, driving her to intense orgasms. Mari, now in a kneeling position with her body red from the rope biting into her skin, relentlessly devours the raw cock, her desire building until she's driven to the brink of ecstasy. As the massive cock is inserted deep inside her, she screams in response to its overwhelming power. Having grown into a depraved nymph under her master's training, Mari reaches explosive climaxes with just a slap to her pussy with a fully erect cock. She proudly displays her pussy, overflowing with semen, and smiles contentedly.