Apparently, yes, possibly one of her spidery legs.
However, the thing that most strikes me about this image is that the guy's penis looks more monsterous than she does.
That, and the fact that a spider's spinnarets are not sexual organs, are basically a set of glands that are made for excreting, and would be about as "fuckable" as a woman's nipples... not that such things as common sense or biology stop hentai artists.
