Image imported from derpibooru 
Original Description:
 
After Fluttershy mentioned a relaxing way to unwind after training Rainbow Dash was curious to set up a session of the secretive method to relax. The cyan pegamare not expecting the process to involve being swallowed by a snake, though with a bit of explanation from her friend Rainbow decided to put on a brave face and give it a go, as she trusted Fluttershy to keep the predatory procedure with the python more than safe. Rainbow enjoying the oozing slide into the stomach, but after a few minutes cooped up in the caustic cavity her composure began to crack…..
 
My fifty-eighth sketch from Silent_E ‘s patreon.
 
This pegasus shaped protrusion was kindly coloured by my friend plaguetyranno .
 
 
This image was voted for by may patreons.If you would like to support me and vote in upcoming polls check out my patreon at: https://www.patreon.com/doomfister
 
 
Also if you’re feeling brave, check out Crazy Water’s Discord, if you dare, it’s where I tend to lurk ;) :
 
https://discord.gg/cVeAghu
 
 
A story in the source as always, please don’t repost in the comments below :)