When there is more affection than entertainment, you aren't dating, you're just playing - with each other.
Ladies: If you think that he could be "the one", there is no rush to hop into bed on the first date! The key to a lasting relationship is love, trust, communication and respect both in and out of the bedroom. Those things can't all be met on a first date, whether "love at first sight" is true or not. There's nothing wrong with having a FWB (friend with benefits), but when it comes to dating and serious relationships, its best to get to know him first.
"Health is the greatest of gifts, contentedness the best riches, trust is the best of relationships." -Buddha
Also see: 'Mars vs Venus' http://nikiconnor.blogspot.com/2011/08/mars-vs-venus.html and 'Incoherent Hook-Ups Are Not Cute' http://nikiconnor.blogspot.com/2011/07/incoherent-hook-ups-are-not-cute.html