Doggy fashion
The most classy one I remember, ever, was one that my mate saw. He was living in a house in Stevenage with a couple of other lads. The landlord put the house on the market, but let the lads continue to live in it while he sold it.

One evening, Mr. Landlord brought someone around to view the house, and being a rude f*cker, didn't bother knocking - ever. So he's wandering about the house, showing the potential buyer, and walks into one of the lads' bedrooms.

Where said lad is vigorously and enthusiastically rogering his bird from behind. The best bit was that he didn't even miss a stroke. He bid the landlord (and the open-mouthed prospective purchaser) a cheery good evening, and started, while pumping away, pointing out the features of the room. His g/f, meanwhile, pulled a pillow over her head and otherwise didn't move.

Sheer class.
(lustfish, Sun 14 Oct 2007, 0:45, Reply)