Los Angeles: Actor George Clooney`s girlfriend Stacy Keibler has been having secret Botox sessions.
She has apparently been going behind the actor`s back to have the age-defying injections.
"For a while now, she`s been sneaking around behind George Clooney`s back and getting Botox treatments," showbizspy.com quoted a source as saying.
"Stacy doesn`t want George to know because he hates plastic surgery on women.
"Stacy thinks she looks pretty good for someone in her thirties and says there are some things George doesn`t need to know. Her Botox is one of them," said the source.
The couple came together August last year, and have stayed together despite recent rumours of a split.