[Yermom]

This squirrel person is on a space shuttle. She spots an airlock (conveniently shaped to fit boobs) and goes to do what is obviously going to be done. She kinda just expands into space that way and lactates gratuitously into the void. All the while, the pilot is watching this event in weirded-out-ness into a sideview-mirror which reads "Objects in mirror are larger than they appear".

After that is an addendum showing off the BE-ee (Who somehow makes it out of this with big boobs, besides the fact that the airlock should have prevented her exit. Go figure...).

"Atrophe - my ass!" , she says.
Bottom panel: [For reference - Her ass:] (Picture of butt.)

Maybe it would be easier if I uploaded the pic? You asked for "at least" a description and I only do the minimum.