Mommy Miyuki, with a blend of excitement and nervousness, allows her partner to penetrate her from behind, taking her on an adventurous journey as she moans and bites her lip, feeling the mix of pain and pleasure, and surrenders to their desires, while they grip her hips and neck, thrusting into her with increasing dominance, slapping her ass and leaving a gentle bite mark on her neck, all of which excites her intensely.