No it wont, just be careful not to tan too long and burn those areas in question. If the heat from the tanning bed is too much and uncomfortable, put a towel over your sensitive areas while tanning.
Can Tanning In A Tanning Bed Naked Cause Sexual Side Effects For Men?
You know, I never thought of that, but I suppose it could reduce sperm, don't you think? Heat's supposed to make the production go way down, now, would a tanning bed be considered hot? I don't know. maybe.
No, I have been tanning naked for many years, it has no effect at all.