I don't remember really. I've had my cock sucked so many times that I'm sure it's possible.
I've had a girl blow me with that candy pop rocks in her mouth, I've had it with ice cubes in her mouth, I've had it in public while a train was going by, I've had it in the backs of buildings, I've had it on break, I've had it in the 69 position, I've even gotten head once when the girl was dressed up like a French maid. Role playing is awesome, but the girl can't be a dog. The French maid girl was a blonde with green eyes. Very fucking nice.