Niece Is Pregnant, Damn, I Don't Know What To Do

She is way too young to have a baby. Not only that, but my brother will kill me. He will never believe that she seduced me, but she did. I resisted for years but then she got a very skimpy bathing suit and wore it when visiting my wife and me. I had to watch her prance around in it all weekend. I was silently praying that my wife wouldn't notice my constant erection. I had a wet spot on my shorts! My niece corner me in my wife and I's bedroom and pressed her body against me. She said, "Uncle, if you don't fuck me I'll tell Auntie that you were staring at my breasts." We had to be fast but it was not a problem, because I was already so aroused. She made the same threat when I tried to pull out. It has been like that for the past two months and I am not surprised she is pregnant. I've lost count how many loads of sperm I have ejaculated into her forbidden young pussy. We would do it each weekend, wasting no time as soon as my wife left for the store or to meet friends or whatever. But what the fuck do I do now? She wants the baby and wants me to leave my wife. I would do that but my niece and I would still have to wait a few years before we could go out publicly like a real couple. Today people would probably think I was her grandfather, not the father of her coming baby. But damn, you have not lived until you've seen your niece looking up you, your cock in her mouth, as she eagerly gulps jet after jet of your semen!