I’ve never really seen a comic like this before.* This is by Alden, of Fixed Characters. Upon being sent the comic, I had a good rummage through the Fixed Characters archives, and I would highly recommend it. I particularly like this one. (NSFW-ish.)

Thank you, Alden.

ETA: I forgot to say, this comic has this license: Attribution-NonCommercial-ShareAlike 3.0 United States (CC BY-NC-SA 3.0)

 

* Except very slightly the Dinosaur Comics, and this one particularly reminds me of A Softer World.