A Quiet Classmate Suddenly Seduces When Alone in the Classroom with Her. 2/2

Just as I was about to go home from school, it started to rain. I had no choice but to wait for the rain to slow down and headed to my classroom. I was expecting to find no one there, but Natsuai-san, one of the most serious students in the class, was there. She, like me, was waiting for the rain to stop. We were supposed to be just waiting alone together. She suddenly showed me her tongue and even her underwear as if she was trying to provoke me. Her teasing me, a virgin, gradually escalated…