It's the newest way to pay for the oldest profession.

A man has admitted exchanging a $100 gas card for sex with a hooker.

Court records uncovered by The Smoking Gun Web site show Kenneth Nowak was busted after an undercover cop caught him having sex with the call girl last Friday at a Days Inn in Fort Wright, Ky.

The 50-year-old Indiana man told cops he paid for sex with a card good for gas at Speedway gas stations, along with other unspecified "gifts."

full story: He pays for sex with $100 gas card