Damn man that would be a complement from the Wilt Chamberlain of women eh? It's always a great complement to hear stuff like that. Real ego boost when a girl tells me something like "youre huge" or, "youre even big when youre soft". My favorite one I've heard so far: "WOW, youre bigger soft than any guy I've seen hard!"
No kidding, I've learned it's best to just not ask people about their past. The most I would ask if it was looking like a potential long term relationship is, for a blood screening for stds. "So, youre number 86!"