From our experience, If you are into Double penetration ( We were ) it helps if both of the men are of a reasonable size, over the years of white on white swinging, my Wife enjoyed two reasonably well hung white guys inside Her at the same time, Including Me.
However when She discovered really big black guys, She never went back to white apart from me.
She when She found a regular BBC partner, that went on for around 10 years, She was around 48 years old,at the time He was about 32/33 years old.
He was the biggest hung guy I have ever seen and had a massive cock around 9,3/4 ins/ 10ish with a huge girth.
He fucked Her on a fairly regular basis, He also used to bring some of his mates along as well as bi/ lesbian girls, to have sex with Her on occasions.
She loved it.
She never stopped having sex with me ever, only when She was I’ll.
Having Her tell me in great detail,about what was done and said to Her, what She enjoyed etc etc, I found drove me wild, having sex with Her especially after one of Her sessions when She was still leaking cum.
We were never into me cleaning Her up etc, but have done when She wanted me to.
My main enjoyment came from Her pleasure, I have been to a few of the gang bang parties when allowed, which I thoroughly enjoyed,
However Her and Her boyfriends preferred me not to be there, as they all felt inhibited when I was there.
As time went on and video technology caught up.
I would listen for my phone to ping, and find that some one had sent a video ,( always taken on my wife’s phone ) to show me what was going on.
She would have made a wonderful porn star, but family ,******* etc put a stop to that.
We had when we were in the lifestyle an amazing sex life.
However as We are both well into our seventies all good things eventually come to an end