I was helping my classmates study for a test, but the girls got bored and started to get interested in my dick instead of studying. However, when I didn't get into it, they started to show me their panties and breasts and tempt me! They got even more excited and it developed into a lesbian scene! If they showed me that, I couldn't concentrate on my studies, so I had to join in! Then, everyone had fun measuring and playing with my dick, observing it for a long time. And when they got horny, they inserted it!