Ahh...another Internet rumor...
http://www.fitsnews.com/2009/11/13/not-tim-tebows-girlfriend/
Tim Tebow's Girlfriend - Zimbio
According to Wikipedia.org, Lucy Pinder is an English glamour model known for her numerous men's magazine covers and endorsements for Playstation 2 and the National Lottery. She also writes a weekly advice column in Nuts magazine called "The Truth About Women." Lately, Pinder has become recognizable thanks to her TV career and false rumors that she had been dating Florida Gators quarterback Tim Tebow. She's appeared on the series I'm Famous and Frightened as well as being a presenter for Nuts TV, where she used to read passages from a well-known novel during her slot, "Book at Bedtime." In January 2009 she also appeared on the sixth series of the UK version of Celebrity Big Brother. She was the first housemate to be voted out.