WWW- PARIS Hilton is hot under her diamond-studded collar over our sighting of her smooching her sworn enemy, sex-tape co-star Rick Salomon, on a shuttle bus leaving an Oscar night party in L.A. She insists he wasn’t even on the bus. “I would never speak to him again after what he did to me,” Hilton tearfully said. “After all the stuff he said about me on Howard Stern? That guy is a joke.” The high-stepping Hiltie added that any suggestion she was profiting from the steamy sex tape, which Salomon is hawking for $50-per-download, is false. “It was the most embarrassing and humiliating experience of my life. I have nothing to do with that tape. I didn’t ask for this – I just want to get on with my life.” Also during Hilton’s heated phone call – in which her sister, Nicky, could be heard voicing encouragement over the meows of an unidentified cat – the indignant heiress said she is still dating Nick Carter, who had not been seen at her side for days. “His grandmother died, and he had to go to her funeral in Buffalo,” she said. Got that?