Senior in class

My friend and I were sitting in Chinese class at the back of the room. We had been friends a while and a joke had come up earlier in the year about playing a game of nervous against each other. For some reason, I decided that this was an appropriate time to start playing the game. I touched his leg under the table and asked "Nervous". He of course answered no and i ventured further up his leg. I had played the game before but this time it felt different. i knew that i wasn't willing to stop and unlike usual i couldn't rely on him to stop me. I moved my hand up towards his crotch and felt it rise in my hand. He told me that he wasn't nervous. I decided that we should swap, as I wasn't sure what else we could do in the middle of class. He did the same to me and it turned out the same, with his hand on my crotch. I decided that it was my turn again and this time i just started on his crotch. I moved my hand to unbutton his pants and slid it under his waistband. His semi hard cock was sitting in my hand, and I noticed that he had also slid his hand into my pants. This was a lot hotter than I thought it would be, and I quickly pulled my hand out as the class ended and whispered to him "We shall continue this later"