My wife said she's seen some pretty big cocks on some swingers sites that are on and is curious if she could take one of them. I suggested that maybe I would make that happen for her birthday. She didn't oppose. In fact she asked questions about how I would find him etc.
So far there has been one guy with a big cock that expressed interest. His cock appeared to be 10"! A black gentleman which she said she isn't opposed to.
She doesn't know about him.
I would have him privately message me a picture of his cock laying on a dollar bill .( everyone has a picture that your cock looks big. Even me!) I would have him not cover the serial number on the bill. Then give me the bill for verification. After she fucks him , I would text her the picture , and give her the dollar in something like a Keychain so she could always remember the time she had her pussy stretched by a huge cock.