Ask her how many she usually has in a session
Just sext like "by other person u mean the guy who picks you up throw u at his bed, kiss all over your body and give u tingling sensation and make your toe curl, pull your hair, tease your clit with his tongue making u moan, teasing your pussy by moving his cock around your pussy but no insert it until u beg to him"
Nice frame flip. Normally I would go with something like "I'd start you off with 10 and see how your body handles" but with how she qualified and accepted the frame before, I would just skip to a sext. There's more than enough compliance. I have to admit this isn't my forte as most of my straight to house dates are implicit so my calibration here probably isn't the best and I can't be sure what sort of text is most optimal here but in this case, you can prob do anything and it'll work.