Next time, get him to sign and notarize written statements. Otherwise you can never be sure...

Apart from Trippin's advice, what one can recommend is something like GENTLY (GENTLY!!!) running your fingers through his chest hair, if he has it, stroking his cheeks, you get the point. If he does not respond, stop there. That is indirect, low-key, and subdued. this method won't get the guy out the door running, at least.