Across the hall, through the window, several women wearing masks gathered in a circle. I was frozen, unable to look away. When one removed her mask, it was her—Eru. The same girl who always dominated me, teasing and enjoying my masochistic nature, now surrounded by strange cocks, her face twisted in ecstasy, clearly enjoying herself. I couldn't help it—my cock instantly hardened. Eru is a true masochist, only feeling real pleasure when humiliated and used. At her core, she's a sex slave. That's how she's always satisfied me. But now... she's gone too far, and there's no coming back.