Don't do it right away but definitely do it if she's showing reluctance on that blowjob. So make all the decisions and see how she goes for it. Wear cuffs and a leather motorcycle jacket, even if you drive a Hyundai.
And more to the point, keep yourself free in case something comes up elsewhere, if you know what I mean. You love horses, paris, chick movies, sushi and Meryl Streep. Don't be scared to eventually talk to her about "the relationship" -- girls go for this. Pretend like you're not super eager to get laid but drop the hint with gentle physical contact.
If you call and she's not available, act real hurt, make it seem like you will end the relationship if she does this a lot. It is nice to date easy chicks and all and get laid on the first date, but some of the hottest ones like to wait a date.
First, if you're not familiar with the book The Rules here is a summary of "The Rules" in the book, which you need to know to understand the satire.
High on the bestseller lists this week is a book called The Rules, a guide to dating and courting for women which effectively advocates that women, in order to snag a man, follow a sexist and manipulative dating game based on the principles of 50 years ago.(Except that back then, the guys knew the women were playing this game and accounted for it.) What follows, in the same vein is a satire, The Rules for Guys.However, if she doesn't at least give you a blowjob by date #2, #3 at the latest, there are better investments out there.On date #3, remind her of the "third date rule." This is the big corollary of rule #7. If you can fake that you've got it made." Hey, in the end they all want to be dominated.
In addition, if you buy her a fancy schmancy dinner at some ritzy place, she won't be able to turn down your request for a 0 "loan" until you can "get to the cash machine." Good investment. Girls do this stare at the phone thing, makes them all anticipatory. Call her in a couple of days or if you get horny again.Also, after sex, just roll over and go to sleep, even if she hasn't had an orgasm yet.