@Background Pony #0CF3  
It would make (a lot of) sense if top one is Derpy

@Phantom Rider
 
I was actually working on some Aj and Rainbowdash stuff but couldn’t get any positions or layouts to look right; but thankyou for the ideas! I’ll be playing around with them a bit and see if I can get any to look right. :)

Let’s see… newly adopted Scootaloo wets the bed on her first night at mommy Dashie’s place and Dash is giving her a wing hug and being all “Oh, don’t worry, squirt… uh, no pun intended.”
 
Or, AJ and Dash having one of their contests (like Fall Weather Friends and Castle Mane-ia.) This time it’s who can hold it the longest. After one of them loses it, the other has still been holding it a long time and just had to watch and hear the other basically turn into a fire hose, which often leads to the winner only outlasting the loser by like five seconds.
 
Or, the same duo has one do the good old hand-in-water trick. Well, hoof. The victim wakes up soaked, sees the laughing culprit, and of course it’s payback time, naturally in the form of tickling the perpetrator until she wets herself too. (That’s another thing I can see them doing to each other often.)
 
If you’re open to using other characters, Pinkie Pie had an emergency once. The result of that restroom not opening up when it did.

@Background Pony #4678  
Requesting this without the horn. Maybe Shy and Dash.

I have an idea for you. One mare somehow sitting on the head of another mare (uni- ali- corn)(maybe first mare is on the bed, second mare on the floor) with the horn in top mare’s pussy. And top mare pissing of course. Don’t know is it too hard to draw wet mane and two interacting characters. Sorry for bad Eng, hope you understand what I’ve written.

@Background Pony #831A  
This was actually an idea I had, but I couldn’t get a good angle on it. I plan to have another go though!

How about some ponies desperately waiting in line for a bathroom?

just like a dog. lol that is hilarious