Preston and Megan went along on Halloween as Mouse Mom and Mouse Dad, though I don't see the affect of much Mouse type genes in them. No tails, large pink ears, or brown fur. The facial features are similar, though.
Sometimes I think Petra and I look somewhat alike, though I don't seem to have any Mouse genes either. I also see a faint resemblance between Preston and I. Seems funny to me, sometimes, though it makes all kinds of sense.