"No, Harry never fucked Ginny," Hermione spat out. The very words tasted like dragon shit on her tongue. "In any case, Celesca said the kid was a baby the night they almost sacrificed her to put her soul into him. The child is artificial, grown somehow. Harry doesn't remember giving Ginny anything they could have used to do it with, but then he has purged himself of his most detailed memories about her. It is possible, however sickening the idea might be to me, that he gave her something to remember him by before we went hunting Horcruxes or something. A lock of his hair maybe. That's all they'd need."