Plenty of exciting reason's!
 

I have to guess that most of Us enjoy showing off our wife's exposed / NUDE in pics because it nice hearing that you have a so called "Trophy" wife that is also enjoyed and talked about by others!
When you see and notice that others enjoy seeing your wife exposed, its a huge turn on for me as well as my wife too!
My wife always enjoyed having pictures taken, then we ended up with a huge Naughty Album collection that sat hidden around in the dresser drawers! But it was my wife that brought up the idea of having the Albums and nobody else is seeing or enjoying them!
My wife later started up a flickr account and had it for a long time, sharing her pics with others and both of Us enjoyed hearing the thrilling and wonderful great comments!
Later when we changed our lifestyle after our daughter went away to college for 4 nice long Years, I used my wife pics to show other guy friends. The idea and thought behind that was to get them Interested enough so them would want to share their pics of a wife or girlfriend and maybe we could go way beyond that to doing a home sharing with these couples! It worked out great too cause the guys got interested in wanting to enjoy a sexual relation with my wife in exchange for their other half too! We had some times where it didn't work out fully with the guy being able to get his wife / girlfriend involved, but since I got to see their pics we let him have some playful moments with my wife anyways! I'm sure they never told their other half about that part! lol
But besides the turn on, my wife like all of them enjoy hearing nothing but exciting comments and what those guys had in mind for her if they got the chance?
Then when you have other women interested, you have to work on a new plan cause I also get excited knowing we have women that enjoy seeing my wife too!~
Maybe all of Us guys have this in common, but its nice to know the wife is Appreciated~
;)

I encourage my wife to show off because, if done in the right situation, it leads to hotter sex for her, and more frequent sex.

Example one. Jokingly one day, I sent a picture of my wife's cleavage to a friend. He commented back complimenting the pic. Later during sex, I was fingering my her. I asked my wife if she was ok with the pic being sent. "Yes". Pussy became wetter. I asked if she'd have been upset if I sent a full titty pic. "No" was the answer. Gushing pussy, big orgasm.

Example two. Bar hoping with friends, myself, my wife and two of her friends end up in the next bar. The other two husbands were about 15 minutes behind us. I wasn't paying attention to what the girls were chatting about, but my wife had turned the topic to how glad she was that her boobs had remained perky since her teens. To prove the point, my wife demands my phone, opens up our folder of top titty pics and scrolls through showing her two friends how good they look. She one upped her friends, hot for sex later that night.

Example three. Came back from a guys overnight trip to a sports game. I told my wife that the topic of an old picture had come up the night before while drinking at the bar. A few years earlier, my wife had been at a party with two of her friends, the one friend had surprised my wife by pulling down her top while the other friend snapped a picture and texted it to me. Hot picture, enf, perky tit and nipple. On our sports game trip, the husband of the picture taker had claimed to have not seen this picture (I presume he had, but was being polite). He asked to see it, I showed him and our other buddy on my phone. Both commented 'that's awesome'. Telling that story to my wife turned her on immensely. Immediate sex, quizzing me with details of their reactions.

I also tried many of the same you mentioned and got the same 'Nope' answer. At least I have some pictures I shared in the album, and enjoy the comments on the pictures.

To naakstel: Caught you two a few times when your camera was up. What a way to show off the wife. Thank you.

Definitely titillating as you've said. Too bad there isn't a VR headset to almost be there viewing the pictures.

Embarrassment
 

What's interesting is that I don't show her off as much now that we're married, as I did when we were just dating. I'm not sure if it's because I'm more possessive of her now that she's my wife, or what.

But what I assume it is, is that I'm a big fan of ENF, and also I'm a Dom. So anytime I'd have her naked and/or show her off, it's purpose was twofold. To help her feel more like a submissive (and me more like a Dom), and to embarrass her.

But now, I feel like she doesn't get embarrassed as easily. So showing her off naked would be less to satisfy my ENF fantasies, or make her feel more like a sub, because she's more secure in her nudity now. And at that point, it's just a treat for some lucky guy, which doesn't help me feel like a Dom, so why do I bother? It's a strange conundrum I've found myself in. Because I still want to live out ENF fantasies, but I can't do that if she's not at least a little reluctant.

I know I've replied to this thread before but I imagine it was quite a time ago. For my wife, I show her off (well, expose her nude on beaches, balconies, at windows and in the car) because I know she likes it and she knows I like it. she will say that she does it because I like it, but when she is horny she'll say how much she loves doing it and being naked in a hotel window is one of her favourite things.

Showing wife naked
 

My wife claims show only goes to nudist parks because I want to go. She claims she knows I like to see her naked. While there, we go for walks and usually she will put on some sort of coverup. I ask her not to, just walk around totally naked and she does. She will get many admiring looks, when we stop and talk to people. I know she enjoys it, but she always insists she is just doing it for me. When we get home, she always tells me she had a great time, so she must be getting excited by exposing herself.

Many Similar Ladies
 

There are more women who have enjoyed, and continue to enjoy such activities. I've known several, in and outside of the Lifestyle.

The reason for sharing -
 

The reason for sharing your wife nude or semi nude is pretty simple... One, you are obviously proud of her and you want to show her off, and Two, the positive feedback gets very addictive.

For me, I LOVE her exhibitionist side. It's such a turn on. I had to think about why. The reason I came up with is I'm usually getting the same view they are in vanilla locations (maybe a different angle). So it's like the situation is happening to me and I get to take it to the level they'd want to later.

I don't get it as much when it comes to sharing photos. I think it depends on the situation.

Years ago a good friend asked to borrow my laptop while we were on vacation. I had a folder in the center of my desktop with my wife's name like "Lisa Photos". I know if it was me, I'd be clicking on the folder. I should ask him if he checked them out. Years later, we freely exchange photos of people we've dated.

This reminded me of a time when I was a young player….
I was at a gas station I knew all the guys as I was a regular. I was chatting with the guy pumping my gas (that’s how long ago lol) and spotted a car parked in the service bay that I recognized. I said to him “hey where is the girl that drives that car? Is she still here?”
He just said “nope”

I said “Ah too bad, I used to bang the shit out of that chick she’s got great tits. Oh and the girl can suck a golfball through a garden hose” (old joke haha)
He looks at me blank faced and says “that’s my fiancées car!”

Ooops ! Did I ever feel like a dink….
However all true she was great fun for about 6 months… fucked like a mink.