Britney Spears denies any slam dunking with Luke Walton (ANI via Yahoo! India News)

Washington, April 12 (ANI): Pop star Britney Spears has shunned reports that she is dating basket ball player Luke Walton. The 'Toxic' singer, who has been spotted often at a Lakers' game, cleared up rumours by asserting that it's her cousin, Alli, who had fallen hard and fast for the 6ft 8ins LA Lakers forward. Spears also said that it was Alli who forced Britney to accompany …