Accidentally seeing someone's underwear exposed, triggering a rational and frenzied erection, and causing them to become mentally unstable. (SCPX-480)

On carefree days with no plans, I sometimes feel the urge to have sex. But it feels strange to initiate it. After all, I still want to maintain a sense of superiority for the other person. Because, when I want to have sex, it doesn't matter who the other person is. Casually relaxing my legs... let's see if he can remain indifferent to my exposed underwear...? Hey! He's staring and has an erection! www