I've always had a thing for Yuuko/Clow too. ^^ They are so evilly perfect for each other. But no, I don't think Yuuko is actually Sakura's mother... Doesn't seem to fit somehow. I actually think it would be more likely that Yuuko would be Watanuki's mother, and I am perfectly convinced that she isn't Watanuki's mother. And I think Nadeshiko would be with Fujitaka as well, not with Clow. CLAMP does seem to have a fetish for soulmating couples, but Clow himself was never actually given a soulmate in CCS. Fujitaka was given Nadeshiko and Eriol was given Kaho, but Clow was left alone. Then again, he was dead. ^^; But I can't see Clow marrying for convenience, just to create children, so he must have loved whoever gave birth to Sakura and Touya. Egads, it just gets more and more confusing... Maybe they'll leave it open. After all, Kamui's father has never been revealed. w00t for immaculate conception! ^^