The long, languorous path this gal's tongue takes up the side of this cock reminds us of the unbearably slow clack-clacking of a roller coaster as it inches its way up the track to its characteristic drop. And we can't say the thrills at the peak are any diminished here... because when she goes down the head, our anticipation rises, our heart starts beating, and we break into a sweat. But maybe that's just us.