My wife's cousin has seen her.
I get on well with a cousin of my wife. We're not close and we probably only speak to each other once or twice a year, but it's always a good chat when we do.
One year I saw him at a family gathering and we got talking about one of our mutual interests. One of the topics in particular was about how we were both sad that one of the presenters for a related TV show was departing at the end of the year.
I made a joke about missing her great breasts as well as her skill as a presenter. In response, he asked me if I'd ever seen the pics of her topless that she had done early in her career before she was famous. I hadn't!
He had them saved on his phone, but with loads of family around it wasn't really the time or place for him to show me. He told me he'd message them to me later.
A few days later (and I'd mostly forgotten our conversation by this point), he messages me to say hi and thanks for the catch-up and then he sends me the topless pics of the presenter. I replied something like "wow - even better with nothing covering them, they're amazing!".
A few minutes later he replies with another pic of a different set of breasts which are huge!, with the caption "these are what you call amazing
".
We chat some more and he explains that got carried away and they belonged to his girlfriend (now ex) and makes me swear to secrecy. I do, and I make a joke about them being much bigger than what I'm used to (my wife) and that he probably doesn't want to know about that though (her being his cousin!).
He replied - and I'll never forget this - "tits are tits as far as I'm concerned!
"
That was my cue! Before he could say anything else I replied with a full frontal nude of my wife and he made no secret of his appreciation. We ended up playing an unspoken game of one-upmanship, which he ended after I sent a short video of me fucking her from behind and then pulling out and shooting a big load on her ass and up her back.
Maybe watching her being fucked was a step too far for him, or maybe he'd cum and was now having regrets. Either way, he didn't reply for about 30 mins and then when he eventually did, it was to thank me for sharing, remind me not to show or tell anyone and that he should probably get back to work.
All told, he had sent me pics of his girlfriends breasts, some of her in lingerie, doing a striptease, and some videos of her masturbating.
I sent him nudes of my wife in various poses, the aftermath of a facial, her spreading her asshole for the camera and the video of me pulling out and cumming on her ass and back. In hindsight it was probably good that he stopped it there. I know I would've gotten carried away and shown him absolutely everything if he wanted it.
The next time we met, we agreed not to speak of it again and to anyone. I've been alone with him many times since then, often wondering if he'll bring it up... he's stayed true to his word and hasn't said a thing!