Feeling a bit exhausted, Riona Kudo takes a short nap after taking a Chinese herbal supplement containing an aphrodisiac... When she wakes up, her whole body feels hot and itchy! Urging the director, Riona starts masturbating, rolls up her clothes, drools, and plays with her nipples and pussy. The aphrodisiac makes her feel so good she loses her mind, and she orgasms like a completely different person! A man caresses her all over from behind, teasing her with whispers, and Riona almost goes crazy. Her nipples, teased so much that they're swollen to the size of pinballs, are already hard! On her hands and knees, Riona's anus is exposed as the man licks her, caressing her from her back to her ears with his tongue, making her tremble and writhe in pleasure. After a licking session, she opens her pussy wide, revealing its engorged interior! With a hard cock in front of her, Riona devours and licks it, making obscene noises, and can't wait any longer, begging for it to be inserted! She begs him to hurry up, then straddles the man and thrusts his huge cock all the way into her. Riona goes into a trance-like state and can't stop pounding into him, and just as she's on the verge of losing consciousness, the man grabs her by the waist and forcibly stops the thrusting! But Riona, transformed into a beast-like female, can't be stopped by anyone, and as she greedily changes positions over and over again, she climaxes wildly and wildly!!