Make a new sig, who cares. Some people just seem infatuated with your sig because they picture it to resemble you. You are very secrative about yourself, so why not take the first thing that reminds them of you to do so, aka, your sig.

Make a new one though. But not of some fucking big titties chick, I just don't understand what your obsession with that chick is. Sure, it might be drawn cool, but are you telling me that there is not one other drawing that is similar that can takes its place?