I would advise you to wait and resist to your urge. I am not the type who believes marriage and sex are sacred, even though I personally am totally uninteressed in one night stands. But I can understand why some people want it, especially at your age it's normal to have a normal libido
But do you really want your first time to be with a girl you paid or a girl you met at some dodgy adult dating site? If you actually sleep with a woman you have feelings for, it will be a lot more overwhelming and worth the wait. I would rather stay 10 years without sex personally rather than paying a single cent for it ; any form of sex not involving emotional commitment seems like love in a void to me.
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Do what Thou wilt shal be the whole of the Law.
Love is the Law, Love under Will. And...
every man and every woman is a star
(excerpt from The Book of the Law - Aleister Crowley)
"Od lo avda tikvateinu" (excerpt from the Israeli hymn)