Hell no.

Sure she is hot but you have no idea who she is, for all you know she is some ax murderer, or she is going to rob you. "Sorry, I as a rule, don't let strangers into my house. If you want I could call you a cab."

"Wow you are a piece of work, do I really look that scary?"

"Umm no, but thats not the point, how do I even know you are alone."

"Sure dude whatever. How about you just go back in and fuck yourself." With that she turns to leave, pausing to look both ways she doesn't even seem to know which way to go.