Best Man - Wedding

I was honored when my friend asked me to be the best man at his wedding. As more details came up about the wedding in the weeks that followed I was regretting accepting the offer of being his best man. My friend and his fiancé had become nudists over the year and wanted the wedding party to all be nude. I tried to find a way to get out of it but couldn't or at least not without hurting my friends feelings and possibly harming our relationship. I was at least happy when I found out it was going to be a small wedding with the wedding party only being being the bride, groom, maid of honor and the best man.
The wedding was held in a small chapel. On the day of the wedding I became very panicked at the thought of being nude when I found out I may be the only person fully nude but knew it was too late to back out. There we were in front of the minister and all the guests. The bride had a veil that covered her breasts but they could still be seen but was also wearing a thong which covered her pussy. The maid of honor had on a thong too but fully exposed breasts. The groom wore a thong which covered his junk but I was wearing nothing. I literally had every inch of me exposed to everyone at the wedding. Afterwards when I asked my friend why he decided to wear something at a nude wedding he said his fiancé and him decided last minute they wanted to tone down their nudity a little given they were the bride and groom. He mentioned with all the photos that would be taken they didn't want to have their nudity be the first thing people noticed. When he mentioned photos I became a little more panicked as I forgot about that and realized that not only was I the only one fully nude at the wedding but now was captured that way for all to see anytime they wanted. I decided to just accept it and let what happened be.
Weeks later I find out they set up a website where they posted the wedding pictures and it also allowed guests to upload pictures they took at the wedding. I was in quite a few pictures and it didn't look like the photographer or guests took any discretion in the pictures of me. I guess when you are nude in front of a crowd and very nervous you are not always aware of everything going on. I didn't realize it until I saw the pictures but I had a very noticeable erection when I was standing in front of all the guests.