Middle school friend jerked off next to me in my bed

I'm a guy

A long time ago in middle school my friend slept over at my house. I told him that I had a sleeping bag he could use, but he insisted we sleep in the same bed together. We were in bed for about 15 minutes, trying to fall asleep, and then all of a sudden he just clapped his hands to see if I would react. He was testing if I was asleep or not. I didn't say anything because I figured he was just killing a fly or something. Then I started hearing rhythmic movements under the blankets. I didn't want to embarrass him, so I pretended like I was asleep and didn't say anything. It went on for the longest time. It felt like 30 minutes, got kind of fast at the end, then stopped.

Another time in middle school, I was sleeping at another friend's house, and the same thing happened. It was a little less gay this time because we weren't sleeping in the same bed. We both had sleeping bags and were on the floor. He wasn't even trying to hide it very well. He was being super loud.

This other friend I had slept over at my house in middle school, and I guess he got horny, so he started looking up porn with me at the computer. He then suggested that one of us hides under the covers, while the other masturbates at the computer, and then we switch afterwards. We knowlingly mastuurbated in the same room.

For the record, I'm not gay at all. I would only fuck a guy if he looked like a girl. Is it normal to have so many guys masturbate during sleepovers in middle school? Like is this something all guys do at each other's houses?