I dated a true nympho for a while. We didn't have a single date that we didn't have sex at least once. She was all about sex and cock, and said I was the biggest she'd had so she wanted to measure it. I didn't really consider myself that big, but I happily agreed, and she kneeled and sucked it to completely hardness and then held a ruler on top while I stood there. Couldn't reach 8", but more than 7.5" on the times she did this. And then a cloth tape wrapped around it gave about 5.7". This always got her really steamed up and wanting to ride me. I didn't mind at all.