PORNSTAR Holly Sampson last night became the seventh woman to be named as a mistress of golf star Tiger Woods. The 36-year-old from Los Angeles is the star of such films as "OMG, Stop Tickling Me" and "Flying Solo 2". She has not yet spoken about her involvement with Tiger, 33. It follows the emergence of 'mistress number six' Cori Rist, 31, who is said to have met Tiger, 33, in a New York club last year.