No, you aren't the only one. I had two childhood sexual abusers, at separate times and places. Actually I find that many of us, especially those of us who were sexually abused starting a very young age, ended up with more abusers. Pedophiles are master manipulators and predators - very sharp at spotting the "vulnerable" child. So it's no surprise really, that it can happen by more than one pedophile and at different ages, to a child.