OH MY GOD! Run, woman, run - Don't let that thing anywhere near you!
I haven't read this book, but I feel intense pity for the poor heroine. There's no way that sex with that monster cock is anything but painful. (And don't even THINK about anal.) And draping it in a, umm, drapery is not going to disguise it. This guy probably ignored those warnings about priapism in the Viagra commercials and now has a permanent pulsing python.
Hmm, I guess whom I really pity is the poor author, who got shafted with this obscenely ridiculous cover.