16 is legal age of consent in Germany, and under certain circumstances I believe it goes as low as 14, but don't cite me when you're in front of the judge, lol. Anyway, my point: If 22yo real-father with 15yo Ai is supposed to be the "horrible oversight" of Aqua's, then you guys need to chill with your choice of words, lol.

If it was 22 and 12, then I'd raise an eyebrow.