When it comes to big chicks with thick thighs, Sienna's one of our favorites. And when it was discovered that she had acquired a vice, we liked Sienna even more. The vice happened to be cigarettes, and there's something about nicotine and a woman who can overpower you in bed with a leg lock that makes for a lethal but very attractive combination. Except now that she's taken up smoking, Sienna says it cuts down on her wind substantially, which got us to thinking. If we got Sienna in the sack and took her past the three minute mark, the oxygen depletion might kick in, and Sienna would get woozy. During her black out, we could then fuck her in the ass all we wanted to. It's just a thought, but a thought worth developing.