I'm saying that, but in the sense that he's willed it and continues to.
Which is why I found it surprising in the MAX series, which I liked(but, again, in almost all cases I like Ennis+Punisher and pretty much don't care otherwise about the character), that he had sex willingly. I'm not even really considering the dishonoring-wifey's-memory thing. Frank is an adult. I'm thinking more that he simply wouldn't be able to, that he would not be able to allow his body to. Because to some degree it seems that all that keeps him together at all is how--- "tightly-wound" doesn't even begin to describe it.--he is. Sheer will, focused on the goal, and never, ever anything fun. Look at the way he's drawn in the MAX series. It makes sense. (and Bruce/Batman should look like that) Because they do say he's been doing this for thirty years. It's hard to believe his body still works at all.