Canada, oh Canada ...
"Canada & Wyoming" were just two random places. I mean seriously, chill out.
The point is that most places have bizarre (usually quite dated) sex offence laws on their books that are randomly and innectively enforced, if at all. Primarily because they are pointless "blue blankets" for the terminally obsessed god squaddies who see it as their lives' meaning to try to suppress all sexuality from society.
Do some research and find out in how many countries/states it is illegal to give your wife a "back shelf" poke, with a jail term as punishment attached. That was Canada, wasn't it?
Since I am not from the UK, I rather agree with you about the ridiculousness of the recent "think of the children" motivated, pointless cencorship and other related laws.
As for Canda, I have in fact been denied entrance to Canada in Calgary, and deported at the Canadian governments expense directly to Chicago from whence I had come. It's a long story, for another time ...