Ouch, I would imagine so. That remids me. Once when I was up visiting Doc in the summer we were out holdiing hands and taking a walk. We were on a pretty busy street and in his home town actually. But there was this place back quite a bit from the road and it was completely dark. No one would have seen us, honest, lol. I suggested that he bend me over the picknic table and take me right then and there. Having sex outside was one of the things on my bucket list at the time as I had never done so previously. I can't say that now though because about a year later on one of our trips back from Kansas I made him pull over at about 3pm. In early August Ohio corn fields are very dense. So I walked him back about 10 yards and made him take me then and there. Wasn't the best sex we have had, but please make no mistake, it was still great sex, partly because neither of us had ever done anything like that before, it was raw, it was out in the open, in the middle of the hot beautiful summer day, we could have been shot, could have been caught. So there was the whole "danger" factor lol. It was just plain naughty, very naughty sex, and I LOVED it!!!!!!!
I digress, back to what I was saying, sorry I got a bit side-tracked (now having to fan myself off because my own memories of that event got me all sorts of hot and bothered, lol) Anyway, I begged Doc to take me over the table that hot summer night and he declined as I was pretty sure he would, but I figured he would because we were in public and could have been caught, and or because we were in his home town. But to my surprise he sited the reason as exactly what you said, getting bites on parts of his body that have never seen the light of day, or in this case, night, lol.
Which I guess is quite understandable. Back at the hotel after our walk, I had given that situation some more indepth thought because I was still highly interested in the idea, I suggested having him keep his pants up but just pulling himself out through his zipper. I know, all you guys are cringing right about now lol. Well I don't have a penis so the thought of his penis skin rubbing against an open zipper and the potential damage that might cause never crossed my mind, lol. Doc brought that possibility to my attention. I always take care of my toys and want the best for them so I dropped the subject, lol