Building up sexual tension is real nice if you have the patience for it.
As you get older more and more things can become meaningless.
If you really find a keeper that you want long-term, it's smart to have a side chick as a safety valve for a little release... keeps your head on straight, keeps the P off a pedestal, keeps perspective... and allows a dude to play hard to get, no matter how much a girl tries to get you to advance.
nothing will crush/intrigue a super-hot girl than a guy saying "Slow down, I'd like to learn a little more about you before we go that route". She'll be up all night in wonder. She won't know you blew your load in a fckbuddy an hour before she arrived, and that's fine, as you don't know her business either.
I dunno tho... I've had some relationships start great with instant nakedness, but the best ones started slowly.
As men, we often undervalue ourselves... If you have your shit together, in good shape, decent living... the world IS your oyster and you can be very selective. Don't have to give it away to every girl. hold out a few times and some amazing things happen.