Here's something a friend and I did while growing up in Indiana throughout our teen years.
Brent and I grew up together and, early on, discovered the joys of masturbation. He was an only child; his parents had divorced, and he was living with his dad. I stayed at his house often, and we spent many hours together watching his dad's discovered porn videos. He had tons of them, of many varieties; mostly compilations. Eventually, we just sort of spontaneously started jacking off together while watching them.
Brent and I were members of the high school baseball team and conspired to incorporate our team members into our jackoff activities. In that pursuit, we would invite one of our team members to Brent's house after a game or practice, to watch porn videos. It was funny to see them watching the videos in silent, wide-eyed amazement, and to watch their pants-bulges grow, especially if they had never seen one before. When they were good and worked up, uncomfortably adjusting their hardened dicks in their pants, or showing a wet spot, Brent or I would pretend that we couldn't help but whip out our dicks, one or the other of us saying something like, "Man, I need to release!" and begin to jack off together. It was also funny to see them sneaking peeks at us jacking our dicks more than watching the video.
Usually, our "victim" would soon whip his own out, with relief, joining in; and we would have a new initiate.
Sometimes he would be shy, not joining in, and we would give him one more chance. Usually, if he accepted a second invitation, he would eventually join in, jacking off with us. If he refused, or ran away, or called us gay, he was scratched off the list. There was this one guy, Thad, who wouldn't join in, and went around telling people we were gay, and, as a result, we got two more recruits outside of the ball team-James, who just came out and asked if he could join, after we assured him we weren't gay, and Jessie, who had been told by another initiate that we had some hot videos, and asked Brent if he could watch with us.