I’m straight and married to a woman. Yesterday after the gym I hit the gym sauna. It was my first time in a sauna in like 15 years. I went in nude with a towel on with one guy in there. After 5 min another guy came in and sat down. I noticed he was looking at the first guy every so often. I’d close my eyes and reopen and catch him looking over at me. Then at one point he put his foot up on the bench and undid his towel a little to wipe his face with it. The thing is when he did this he revealed a massive penis. It was the biggest I had ever seen. Easily 8 inches soft and extremely girthy. I then started getting hard under my towel and my heart started to race. Then the original guy left leaving just the two of us in there. I had some courage and did the same where I wiped my face with my towel and my penis was temporarily out. I noticed he looked over at me during it. After a few more minutes I left. I walked very slowly towards the showers to see if he would follow. I heard the door open from around the corner and he indeed left right after me. I was out of sight and he went into the steam room. I went in after but it was really crowded so I chickened out and left. I don’t normally get naked in the gym but today I brought shorts with a built in liner so I had to get naked to put them on. I keep thinking about how hot it was seeing his massive penis in a taboo way. Where do I go from here?