I've just always laughed at the Rear Guard like.... yeah I guess it works... but what about the rest of your holes? >.> Haha! Bump against it a few times then "slip" downwards. Can just imagine Zu being all smug about having it in then suddenly ending up a pussy filled, cumflated, probably knocked up ragdoll xD;
Also is really cool that you are drawing stuff for the fans! :D Normally people are meant to get YOU gifts for your birthday! ;)
You do horse dongs that stretch the girls they penetrate, complete with massive stomach bulges that should probably kill them, and this is crazy to you? xD
Back to the days of the ol Zu and horse-cock animation would be fantastic!
Or dog
if she was a rabbit, it wouldnt be an issue... rabbits do get impregnated while pregnant. XD it's a biological function they have.
I liked your original idea though, I might do something with that some day.
Also is really cool that you are drawing stuff for the fans! :D Normally people are meant to get YOU gifts for your birthday! ;)
And yeh, but it's not MY birthday, it's a my fictional character's birthday. Can't expect people to draw stuff just 'cause of that, hoahoa.