If she smokes she pokes.

Interestingly, and purely anecdotally, I reckon I have met more smoking women who were up for a casual fuck or few, but not by a huge margin. Some of the smallest, mousiest, clean-living librarian types turned out to be much hornier and sexually aggressive than their party girl counterparts.
The obvious explanation is, as you say, smokers often ARE quick pokers; that dynamic leaves the seemingly innocent, shy do-gooders by the wayside, where they are sexually deprived to the point of just going nuts when they finally get some dick.
Personally, I don't really care either way

Fuck a smoker? Cool. She can shower and brush her teeth before you have your way with her, if that's what it takes

One of my exes, who I thought was nuclear hot, smoked a fair amount, but when it came time to have sex, she made a concerted effort to clean herself from stem to stern. I don't go as crazy as Matt C. does about eating pussy, but once this particular gal was clean, she tasted like peaches and cream.
So, never say never, I guess
