OK I've bred Kay several times before, but this is the first year that I've seen anyone describe "tail suck" and thus I've never really looked for it before. But I'm noticing today that the swelling from ovulation has increased, and it really does look like her entire posterior has been deflated somewhat. I don't know if you can see from this shot but here she is today:
Also, her color is super bright, brighter than I've ever seen it. Does this have to do with being gravid as well?
Here is a shot of her from October. This is actually somewhat darker than her usual self, but you'll get the idea: