He "obtained sexual services" for consideration. The "consideration" was his promise to pay after he fucked her. It works. Contracts 101.The guys seems to be a grade A scumbag and has a history of ripping people off.
However am a bit confused. So he did not pay the sex worker, so it means he technically did not purchase sex. So how can purchasing sex and not purchasing sex both be a crime?
Just legalize the damn thing already.
I buy this Ford for no money down and I will pay the dealership $500 per month starting next month. It's a contract.