The muscles spasm approximately 1000 times during one orgasm! Mio's orgasmic muscles spasm, stiffen, and develop repeatedly with Mio orgasm! A muscular body born from repeated orgasms! A sweaty, hardcore sex session with a sex-crazed, athletic beauty clad in sports costumes, overflowing with sexual energy, as flesh collides with flesh! Spasming abdominal muscles! Bulging upper arm muscles! Toned gluteus maximus! Her super-sensitive, flexible body, brimming with muscle beauty, has been trained through yoga and gymnastics and bends! She arches her back! She spasms!