Woof - these circumstances may well fit the, now redundant, criteria of obtaining services by deception and it's replacement, Fraud by False Representation if the prosecution can convince the court that the woman was providing a 'service'. As she was not participating for monetary gain I'm not sure it would be classed as a 'service'.
You can never find a Barmaid when you want one.... ;-)
Fraud by false representation (Section 2)
The defendant:
made a false representation
dishonestly
knowing that the representation was or might be untrue or misleading
with intent to make a gain for himself or another, to cause loss to another or to expose another to risk of loss.
The offence is entirely focused on the conduct of the defendant.