From 1998, Fifty-Five Fucks by Sam Lipsyte.
Four is Kenneth by the lake. Five is Kenneth and his brother Keith by the lake, their cocks like great, quivering cocks by the lake. Six is Moira with the tragic scar from tennis. Seven is me coming in Heidi, or Helene, in the front seat of my Dodge Dart, and me, or maybe not me, thinking nips, or thinking nips, knots, nips. Seven is me or rather not me coming in Heidi, or Helene, but also me throwing my hand over the vinyl seat to clutch the hand of Donna who is topping Brian, who is maybe bodkinned there by Brian, who is coming in Donna in the backseat of my Dodge Dart.