Probably not, but after watching her and her sisters, Kourtney and Kim, on Keeping Up With The Kardashians and the latest series, Kourtney and Khloe Take Miami, I can't help wondering just a little.
Kim is the best known of the 3 sisters, thanks to her Playboy pictures and her impressive booty (I actually think it's a law that you can't mention Kim Kardahsian unless you include a reference to her derriere). Khloe and Kourtney are both getting to be better known in their own right--you may have seen the shoot that Khloe did for PETA:
All three sisters are lovely, and their bottoms would be coveted by spankers everywhere. But after seeing episodes of their shows, it looks like the majority of smacking is being done by Khloe herself, and Kourtney seems to be her favorite target.
At least once in each of the first two seasons of Keeping Up With The Kardashians, we've seen evidence of this. I recall one episode where Khloe was dragging Kourtney across the floor, eventually working her pants down, and then finished things off with a big smack to Kourt's backside.
In the opening episode of Kourtney and Khloe Take Miami, we see the two sisters having a discussion that ends with a high five--but Khloe, with a devilish gleam in her eye, takes hold of Kourtney's hand and slowly pulls her sister toward her, briefly getting her in a darn near perfect "bottoms up" position. Kourtney, being no fool, immediately turns over onto her left side. We then see Khloe hook Kourt's leg, turning her back over face down and buns up. Sadly, the scene cuts away before we see what happens next, but--speaking as a spanker with 20+ years of experience--I sure know what I expected to follow.
Later in the series, when Khloe learns that Kourtney is getting togther with an ex-boyfriend, Khloe gets Kourtney face down, flips up her skirt, and smacks her bottom (sorry about the picture being so small, but it was the only video-grab of the scene that I could find):
I leave it up to you to decide for yourselves....