SOD female employee engages in a massive orgy, culminating in 21 consecutive ejaculations inside her, all in pursuit of developing an ultimate masturbation device! SDMU-892

SOD's female employees are developing a new masturbation sleeve! This time, the theme is "Ultimate Orgasm Vagina"! To recreate the tightness of a woman's orgasm, they recruited five employees known for their exceptional vaginal size. They measured the vaginal pressure during normal and ultimate orgasms, and then had three of them participate in a massive orgy! Who will ultimately become the masturbation sleeve's model?!