We know a couple with whom the husband is very well endowed. I mean VERY WELL ENDOWED.
Mrs. WS once said sarcastically when we were talking about penis size "She has a 1%-er penis everyday, so why do they swing?" Get her point?
Mrs. WS had a long term relationship with a guy before she met me that was a 1%-er, and they had great sex together. My ex-wife has bigger tits than Mrs. WS and we had great sex together. Mrs. WS and I have even better sex with each other because although big dick and big tits may be a turn-on, they do not make for better sex. It is the fact that we love each other and are tuned-in to each other that makes for great sex.
We've swung with those that were visually bigger than me, and those that were visually smaller than me, and I couldn't see any difference in the way Mrs. WS enjoyed herself. I think for most women, and it sounds like you included, size has allot less to do with their enjoyment than the whole sexual experience does.
Mr. WS