Once (in "our" club) we entered a room and saw a man with an enormous huge cock and especially cock head.
(Only on the nude beach at Cap d'Agde we saw even a bigger one. Yes, black one, very long and fat.)
My wife was surprised but when I told her to tell him, she didn't dare.
So I took her to him and told him my wife didn't dare to approach him, being afraid to have his cock in her mouth.
He smiled and said he could understand it.
"But, he said, she can play with my cock" and put his cock in her hands.
I can't remember how it happened but at a certain moment, with her back to him, he was playing with her big breasts while she moved his huge cock over her bottoms. Both smiling to me.
She later on: "Having such big tool in my hands, moving it over my back, was an incredible feeling. So I became curious if it would fit in my mouth. You saw I tries, but even his cock head was too big."