While my best friend's girlfriend was asleep, I noticed a wet spot on her panties and was overwhelmed with an uncontrollable urge. Gently touching it with my finger, I felt thick, sticky fluid stretch into strings, making my heart pound right there. Seeing her big tits exposed as she tossed in her sleep, all rationality vanished. I knew I shouldn't lay a hand on her, yet I couldn't hold back—my hand inevitably moved toward her crotch. As her body grew wetter, her panties overflowing with moisture, my desire surged even higher.