The Telegraph has this unusual story.
Besides the obvious snap reaction, which is, "what the hell? How is that even possible?" I can't help but feel rather sorry for the poor chap. Getting placed on the sex offenders' register seems a little harsh considering the guy was in the privacy of his own hotel room (pavements are a different matter).
If you've read the (quality literature) that is Hotel Babylon, it would also appear that the hotel staff behaved in a somewhat gauche manner - if the staff at 5 star London hotels have to put up with being propositioned for sex and invited into the rooms of enthusiastic exhibitionists, surely these guys could have overlooked a bit of human-bicycle sex? (once again: How is that possible??)
Then again, perhaps the fact that you're paying exorbitant sums to stay in 5 star London hotels also means that the hotel staff won't call the police on you and land you with a conviction for "a sexual offence involving an inanimate object?"