OK, here goes. I'm trying to make this fun for you'all.
pic 31) World Naked Bike Ride, but what city? Do you know your architecture? Its Madrid. Don't let the masks fool you into thinking its Paris.
pic 32) This comes from the aptly named "Boobs on Bikes" parade held last year in New Zealand. Those were mostly porn star boobs.....
pic 33) This one comes from Prague, Cz. Some promotion for some club.
pic 34) Two lovely Montanian's pose for you at the annual Testicle Festival in Montana.
pic 35) I already gave this one away in the title. The pic is from a ROT biker rally. It almost looks like a burning man landscape, doesn't it...?