Did Sharon Stone use a body double in Basic Instinct's infamous interrogation scene, a.k.a. the " leg crossing " scene, or was that all her?. The interrogation scene from Basic Instinct is one of the most famous in and then recrossing her legs, revealing the underwear that she doesn't have on. In the. Renato Pozzetto & Sharon Stone in Basic Instinct . Exclusive pre production footage of Sharon Stone's.