I don't beleive there is anything in nature that says one size fits all or I haven't found it. Probably been said but if it doesn't fancy your taste don't order it again.But what cause the loose pussy? In women who haven't had kids. And neither of us were drunk or on drugs so that wasn't it. I do masturbate with a very tight grip so that might be part of the problem but I have had much tighter pussies before and I think I prefer those. I'd rather be told to stop / take a rest than feel like I'm shagging a carrier bag.
Very strange indeed.
Your last statement appears as though you really wanted her to say "OOOHHH stop I can't take it anymore" and I guess that didn't happen. May have bruised your ego a bit.