Married_Dom:
My point being that big cock alone does not, by itself, do the trick.
This is true. I have an above average sized cock, 7 inches, but my wife cuckolded me with an ex-work colleague of mine for 2-3 years until he moved away. She readily admitted that his cock was half the size of mine, once noting as I undressed for bed that Mick's cock hard was the size of mine soft, but she couldn't let herself go at home in case the kids heard us. We made love, gently and considerately, but Mick fucked her hard and she liked it rough when she could cum as noisily as she liked at his place.
Peter C