there are no dumb questions! i think it's great that people are so curious, it makes me so happy!! I've given a good amount of thought to who phoebe's parents are so here's some basic descriptions...
phoebe's mom is a poodle and looks like an older version of phoebe, but with much longer and thicker+curlier hair that she usually wears down. she likes to doll up and do her hair, but often can't due to lack of time, so she does the bare minimum before a day of work (most days) and cuts her losses. she got a little curvier due to her pregnancy with phoebe, but since she had to work for most of the pregnancy and after, she lost a lot of that weight again pretty quickly.
phoebe's dad is a labradoodle who is just a little lighter brown than phoebe with slightly thinner and looser curls than her that he keeps shaved close to his head and ears. he's wirey with a bit of a beer belly, which gets much worse after phoebe goes missing.
both parents are shorter than katie, though only by a few inches each, and phoebe's mom is the shortest of the three.
that's everything about them physically, i could keep going on and on about them though. which is funny cause phoebe won't see either of them again until she's an adult herself. thanks for the question!!