Seriously, what are you trying to prove?
I agree with Jojo about the bragging part - if you reckon it's fine
to give that sort of answer, then I am not surprised with her sort
of response.
Dude, if you want to relate your sexual adventures, you will hold
that sort of discussion with your guy friends in private because
you can't impress woman, you see as love, with that sort of 'truth'
as ultimately they are more likely to be turned off than to be
whatever you wanted her to feel before you make claims to your
'victories'.
Furthermore, you wanted this to last? Isn't this an oxymoron?

Cheers