Caught or the First Time

My good friend Mike was sleeping over my house one night, just like he has done plenty of times before. We have been pretty much best friends since grade school. It was a pretty boring weekend, and no one else was really around to hang out. So, we just stayed at my house, watched a movie and played xbox in my basement until like 2am. We were both starting to get pretty tired around then, so we decided to go to bed. We went upstairs to my room to get ready for bed. Mike had a bag with clothes to sleep in and a blanket and pillow in my room. We both started to get undressed. We have seen each other change plenty of times, but we have never seen each other fully naked, besides seeing our butts while changing in the locker room. I've seen Mike in his boxers plenty of times, and he has seen me in mine. But tonight, I noticed something that I never really noticed before, probably because I wasn't really usually looking. But tonight, Mike had on a pair of gray boxer-briefs instead of just regular boxers. They were pretty tight-fitting, so I could clearly see his huge bulge, which caught my eye for the first time. Mike looked younger than he was. He was pretty skinny but average height. But his big bulge made him look older. Anyway, he grabbed his blanket and pillow and headed out to the couch in the loft in just his boxers. I told him he didn't have to sleep on my floor since my brothers weren't home and my mom would be leaving early in the morning anyway. I woke up pretty early the next morning, around 7, when I heard the garage door closing as my mom was leaving to go down to our beach house for the day. I looked down and saw morning wood in my boxers, which I have pretty much every morning, but I usually just wait to get up until it goes away. I knew no one was home and Mike was probably still asleep. So, I grabbed my laptop, pulled up some porn, and started jerking off. I watched a few different vids, lightly rubbing myself under my sheets, until I found a good one. I knew I was going to be able to cum to this one. So, I pulled off my sheets, plugged in my headphones, and took my boxers off. I was really hard. I was jerking off fast, completely naked on my bed. Then, as soon as cum started to shoot out of my dick, Mike walked into my room. There was cum shooting all over my chest, and there was nothing I could do to hide it since I was completely naked. My best friend not only just saw my dick for the first time, but he saw it hard, and he saw me cum. As he saw this he was laughing, and said "whatcha watching?" He kept walking into my room to grab his clothes from his bag. I was still in shock, half trying to cover myself while my hips were still slightly thrusting from the orgasm that was pretty much still happening. I looked down at his boxer-briefs and saw his morning wood which looked like it just got soft. It looked like someone put a banana into his boxers. I didn't realize his dick was that big. I got out of my bed to slip on the boxers that I threw onto the floor as he was putting his clothes on. I still had a boner so I wasn't hiding much. I was trying to get to my dresser to get pants without getting too close to him with my boner. He got his clothes on and said "you should lock your door, I always do" and went to the bathroom down the hall. I quickly cleaned myself off and got dressed. I played it off like nothing happened after that. He never really said anything either. But after that, I think about it sometimes. It was both humiliating and thrilling at the same time.