Charity rarity.

Like a story sweet enough to have been an episode of 7th Heaven, Jessica Biel is auctioning herself off for charity.

The Associated Press reports that a date with the actress, late of the cancelled UPN series and 2005's Sexiest Woman Alive per Esquire Magazine, will be available to the highest bidder next week in an effort to raise funds to offset the medical expenses of Denver, Colorado teen Molly Bloom. Molly, an 18-year-old high school graduate, was en route to her prom when she was involved in an accident with a limousine, resulting in the loss of her leg. The mother of a friend of Molly’s contacted Jessica’s family, residents of nearby Boulder (where Jessica grew up), to ask for Jessica’s help.

"My mom happened to be able to contact (Biel's) parents, and they had heard about Molly's tragedy. They said 'yeah, I bet she'll do that,'" Dmitri Lee Natali, one of Molly’s friends, said regarding Jessica’s participation.

"Mollypalooza," as the event has been nicknamed, will be held on Tuesday, July 18 at the Rock Island Club in Denver. And while Jessica herself won’t be able to attend the event (she is currently on location for her next film), prospective suitors can listen to her audio plea for help by visiting http://www.dosomethingthatmatters.com/. How very Stealth.