PS: A ten needs special handling if you want to keep her. Chances are that if you bed her on the first date, you will blow it. Since I'm a Christian and don't believe in sex before marriage I'd say to "I want to sleep with you tonight (and she's all over you)", I'd say "Look, I'm looking for the whole ball of wax for a lifetime, why don't we go out to lunch tomorrow noon at XYZ: Life is like a box of Chocolate's - you never know what you might get" and walk away.
If she chases you and starts to get rude and crude - she's not a ten. If she is a real 10 she will come bright and shiney to the date. If she's not a ten, she won't show up.