The hot wife scenario on SA is real, but not prevalent.  Typically they are attached gals in an open relationship, or in an unsatisfying relationship which they are unwilling to leave, or they are complicit with their partner in cuckold play or to satisfy a partners voyeuristic nature.  Couple years ago I had an arrangement that covered 3 dates with a married woman whose hubby got to watch, although not from the same room where she and I played.  The three of us met for social time/drinks in a tavern, then off to their place for fun, at which point he disappeared, and she literally jumped my bones.  As the online conversation progressed, and then at a M&G, the true nature of her being on SA unfolded, as it was not perfectly clear from her ad.  When face to face I expressed my hesitation as hope that a loaded gun would not be discharged in my direction.  Her response put me totally at ease.  He turned out to be very engaging, easy to talk to, and for sure, one lucky guy to be married to this hot wife.  She indicated that coming out of a date with some pocket money would please her, but that he was not to know about the gift.  So, my experience was better than good (I'd see her again in a heartbeat), but it's most likely always going to be a YMMV situation, and maybe not for everyone.  

I personally have had good experiences with such.  The thought use to scare me a bit in the past when I thought the hubby did not know. The first two where the husband was to be present, or at least greet me was a bit off tending but worked out well in the long run. Put me off my game a bit at first, but finally I said fuck it to myself and proceeded to do the wife as best as I could.  Continued with both and it settled into a kind of service; "Hi, I'm here, how you doing....."

But most of the married women have been doing it on the side without hubby's knowledge as far as I know. I'm now old enough that most of the younger husband's would not even think that I am doing their wife. lol

My first SB experience was with a married woman and I’m still seeing her 4 years into the relationship.  The sex is fabulous and there really are no strings attached.

I suspect many have boyfriends, so not all that different if they are married.  However I am only aware of one that was married.  But she said the hubby was physically disabled.  Not sure if he knew or not.    
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Psychologically I prefer if they are cheating behind his back.  Although paying for it loses a lot of the intensity.  My most favorite experience was doing a civie married lady (no money.)  It's just hot banging a cheat'n married lady that really wants to bang you too.  Hot!

... and one, a Porn Star has a fiancée. But since she's still quite active in porn and she books private meets as well, I'm sure he only cares that she stays safe.   The other Porn Star in my rotation is married on the DL - meaning her SA profile, escort ads, and her porn bio and social media specifically claim she is single.  

 
I have messaged a few POT's with "married but looking" and "open relationship" in the past, but never got a reply. I guess "married but looking" wasn't "looking" for me. LOL.  

 
I tend to think I'd be reluctant to get into a long term arrangement with a married POT.  A BF is one thing, especially when she's in her early 20's and he's just as likely "cheating" as well.  But I really don't want to get calls, emails, or door knocks from some pissed off dude who thinks it's MY fault his wife decided to fuck other guys.  

 
Life is good

 
The Cat