Strange Hotwife

So, last week my beautiful Native American wife, 40yo 5'6" and about 145lbs. with beautiful 36DD breasts and long black hair, came home after a rendezvous with her latest play thing. We practice the hotwife lifestyle, minus the cuckold humiliation stuff, I just like to see her enjoy great sex! Anyways, this guy is her third boytoy and I've begun to notice a trend.

So, she shows me the video she made, where it begins with her holding her phone and being led by her new friend down an alleyway and into what looks to be a restaurant patio. It was closed at the time of the video, and the fencing surrounding it made it fairly private. So, they get back there, she passes the phone to him and he records her dropping to her knees, unbuckling his belt, and devouring his rock hard cock down her throat. What I noticed, however, was this guy's weiner was tiny. I'm talking like sub 4.5".

This wasn't new, though, as her last two encounters were also very tiny. It boggled my mind for months! I am about 6.5" and girthy, and I can just barely reach her cervix, so I know she isn't shallow. Just don't understand why, if I let her run around and have her fun, she is digging up dudes with little dinks lol.