Image imported from derpibooru 
Alt Link (Warning: May link to something unrelated) 
Original Description:
 
“You sure about this? I dunno if this tank is just regular helium…”  
“Oh, c’mon Mags, what’s the worst that could happen? I’ll be right over here, just try and get my attention if anything’s going wrong. Celestia knows you’ve got plenty of experience being big anyways~”
 
In an effort to do a nice thing for the town, seems Felicity’s taking advantage of the nice weather and opening up an outdoors air yoga place, to help folks get nice and nimble and stretchy… okay, mostly the last one, but still! With Mags volunteering as an ad to demonstrate what a few sessions can do for somepony, all’s set to be a nice relaxing day of stretching, swelling, and squeaky times~
 
…on a probably unrelated note, anyone seen my massive tank of P-235 anywhere? ’s gone missing, apparently.
 
Part 1 of 4 of a commission for Mags~