Two girls I've been with didn't say anything about it the first time we had sex, but then later revealed that I was the biggest they'd ever had and start in with the compliments about "huge," making them sore, etc.
I never understood that - why wouldn't you say it the first time? Like I always compliment something about the girl's body the first time, like "wow, you have a beautiful body" or "God, you've got an amazing ass" or something like that. I could never understand why if you thought a guy's penis was biggest you'd ever had you wouldn't immediately say something complimentary ... but I gathered from them later that the first time, they were very nervous and self-conscious about their own bodies, so weren't feeling too verbal ... anyway, it's always been interesting to me.
When that happened, both times, I assumed they'd been with bigger, when in truth, they hadn't ... so you just never know.
Eisenhower