Thanks so much.. that book looks fascinating and informative!
I will start reading it

Most of the book seems to focus on once the girl is Already in bed with you.

But what makes some girls hot for One guy so much that they sleep with him right out of the club on the first night... while other guys they will string along for months before taking it further?

So the hard part seems to be 'triggering' them to "want" to have sex with you in the first place.