"Right before my period, I can't control my desire..." Ria Kashii murmurs, almost scolding herself, yet unaware of the hidden camera, lures a male co-star into the makeup room and initiates sex on her own terms. Plans for mutual masturbation are quickly abandoned as she becomes obsessed with the pleasure of penetration. Skipping foreplay entirely, she dives straight into intense, direct action. Using teasing techniques to heighten her arousal, she repeatedly brings him to the edge, denying orgasm each time, while relentlessly pursuing her own satisfaction—ultimately experiencing explosive pleasure. This video captures the excessive excitement and uncontrollable lust unique to the premenstrual phase. Immerse yourself completely in the intense sensations created by their intimate physical connection.