Did this make him slightly horny?

So me & my best friend who happens to be a guy and is like a brother to me, were wrestling the other day. Then he stole my spot in the couch so I plummeted down on his "area" why he was Laying on the couch so i could get him to get up. So I was still sitting down there, and I felt something underneath me (yes it's what you think). Can guys get hard ons from girls just sitting on top of them although it may hurt? A sorttttttt of like him anyways.