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different males. It’s rare, about 1 in 13,000 twin pregnancies naturally, but in this case, it happened through fertility treatment. The clinic used sperm from two different sources.”
“Two different sources,” I whispered. “Colin’s sperm and someone else’s.”
“Did Colin know?”
Dr. Ortiz’s face was grave. “I don’t know. But Ms. Mara, I think you need to continue reading …
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