Yesterday, in physics (usually pronunced with a sigh in my school), a friend of mine who was sitting next to me started to feel me up. First he put his hand on my leg for a short while, then took it away. Then he put his hand on my back, and took it away. This continued for a while, and I led him on a bit, saying things like "why did you take your hand away?", and then "why did you put your hand on my back and not on my...?". Anyway, then he stopped. He said he had a boner, and that he couldn't believe feeling me up was making him get it.
I said I could see it, which wasn't exactly true. He showed me through the outline of his pants, and from what I could see, he definitely had one. I started putting on the "it's ok if you're gay" thing, but with a tolerant, straight touch. I wasn't being serious, since I knew he wasn't seriously gay. I started touching him in return. He tried to stop me, because he said he wanted it to go down.
So I told him to pour the cold water in his water bottle on it. Again, I wasn't serious. But he poured some into his bottle cap, unzipped his pants and told me to look away and did do it. I didn't look away though, but couldn't see anything as he didn't lower his boxers or anything. I don't find him particularly hot, so I don't think I missed out on much. Then he zipped up and we continued with the lesson; amazingly the teacher didn't notice anything.
The fondling was not the first time this sort of thing has happened, I assure you. It's funny how straight guys can be so touchy-feely like this. Another friend of mine, who I do find hot, used to do this, except for several weeks and without the boner. He was better at seeming more into it, partly because his voice was more convincing and he was more vigorous. I don't doubt that either guy is straight, though. Of course it's possible they're bi or gay, but this is not enough justification.