What I meant was how many women would take well to a guy walking up say "my cock is 6x5, think you can handle it?" Don't you think most women would burst into laughter just to get rid of the guy?
Most women don't like guys to be quite that obnoxious.
I think it sounds more like a considerate comment than an obnoxious one.
I mean she would be able to reply "Thank you for warning me about your cock kind sir. A cock of that enormous magnitude would surely rip my infinitesimally small vagina apart. If only my horny and wayward niece were here. Her cavernous pussy could easily accommodate a man of your humungous dimensions but she already has a boyfriend. What a pity."
If the woman had a sense of humor I'm sure she could come up with an amusing and possibly crushing reply.