My wife acts the prude sometimes but is fine when you get her going and I've taken lots of photos of her over years but posting them doesn't give me the same buzz as someone seeing the photos with me which I can't arrange very often, in fact hardly ever. I must work on that.
Also it's great if I get her to dress in something see through or wear no underwear and we go out somewhere but it has to be another town. I get a thrill seeing other guys watching her.
In answer to the original question I suppose it just gives us a buzz. As an earlier poster said it seem to affect a lot of us! So it must be normal right?