The first time guys other than me saw my now-wife (then girlfriend) naked with me there was on a nude beach in 2013 and was certainly arousing.
But the first time a guy she and I both actually KNEW in real life, hung out with, he followed her on social media, etc, saw my wife naked (topless at least) I posted about on this very forum years ago:
https://forum.oneclickchicks.com/sho...19&postcount=3
Long story short, the three of us were staying in a hotel room together. She slept topless that night and in the morning SLOWLY got out of bed, even sitting on the edge of the bed and facing him in nothing but her panties for ten seconds or so, before getting out of bed and unhurriedly walking to the bathroom and shutting the door.
To say it turned me on was an understatement; it was a sexual revelation for me on par with first time seeing a woman naked in person and first time having sex. Showing her off specifically to people we know has been a near obsession for me ever since, one she has thankfully been consistently cool with and indulged me in many times over the years, including a few more times with that same friend.