Cocktail waitress Jaimee Grubbs, who claims she had a 31-month fling with the married golf superstar, apparently told fellow contestants on US TV reality show Tool Academy she had also "hooked up" with George Clooney.
Telly pal Krista Grubb (27) told The Sun, "She was showing all these texts saying they were from Tiger and George.
One she said was from George said, 'When can I get in there again?' He signed it G.
"She said she met him while working as a cocktail waitress in Los Angeles and they would meet up in Vegas and he was a lot of fun.
"Jaimee said George was amazing but wasn't so nice about Tiger. She just kept saying he was horrible in bed."
A second friend of Jaimee said Woods (33) offered to buy her an apartment in Las Vegas.
New York socialite Rachel Uchitel (34) and Vegas nightclub executive Kalika Moquin (27) are also said to have had affairs with the golfer.