Quayle said he couldn't recall what his posts involved or when he made them.
Richie said Quayle contributed items in 2007 under the alias "Brock Landers."
"He was the guy, that you know, people would send pictures to of hot chicks, and he would put together who he thought was that hottest girl and why," said Richie, whose legal name is Hooman Karamian.
Quayle hopes to replace retiring Republican Rep. John Shadegg in the GOP-leaning district that covers parts of Phoenix and Scottsdale and some rural areas to the north.