Sharon Stone Loses Custody Of Son.BASIC INSTINCT star Sharon Stone will reportedly lose custody of her five-year-old son for a year under an unusual agreement with ex-husband, PHIL BRONSTEIN.A mediator in the couple's custody case hammered out a new agreement in November (05), stating that their adopted son, ROAN, will spend one year with one parent and then the next year with the other, according to US tabloid the Star.The annual custody switch will continue for the next four years until the agreement is reviewed again.Stone is shooting five films back-to-back this year (2006) and Bronstein felt the toddler would be better off staying at his home and attending school regularly, rather than travelling to various film sets.Roan will be living in San Francisco, California, where his father is editor-in-chief of the San Francisco Chronicle newspaper.Stone has another son, eight-month old LAIRD, who she adopted after divorcing Bronstein.Meanwhile elsewhere Actor WILMER VALDERRAMA has slammed reports that he is dating sexy actress SHARON STONE.

The THAT 70's SHOW star has denied reports he was fixed up with the BASIC INSTINCT actress by his co-star ASHTON KUTCHER.

He explains, "My publicist just sent me a (press) clip and said 'You have to read this, it's hysterical.

"Ashton is apparently trying to hook me up with Sharon Stone and we both agreed to do it.

"We're just waiting for our schedules to clear so we can plan our hot date."

The actor has never met Stone in person, but if the opportunity presented itself, he would be open to a possible date.

He adds, "She's a wonderful woman and I don't have the pleasure of really knowing her, but I'm sure she's really hot in person."