That sex on the floor turned into a powerfuck, and then it turned into poetry...
2008, Neil Plakcy, Hard Hats: Gay Erotic Stories, link:
Mike continued to powerfuck me until finally he gasped, “Fuck! I gotta come. Fuckin' now, stud!”
2011, Reggie Chesterfield, Hot and Dirty Wives, page 63:
“Powerfuck me, you bastard!” Tiffany said, coming to another writhing orgasm against the big black cock.
2012, Michael Joseph Gross, The Advocate, numbers 869-870, page 46:
A while later he sent a second E-mail, reiterating his invitation and clarifying his term: "Powerfuck (pou • er • fuk) v. 1. a rapid, piston-like form of sexual intercourse between males characterized by passionate noises and heavy sweating.