Bowser Traps Mario in a Pipe (Patreon)

 After news of Rosalina's Tickle Game reached Bowser's ears, the world  would never be the same again. Bowser immediately started to formulate a  plan to capture and tickle the feet of every Plumber and Princess he  could think of.

One morning, Mario got a letter in the mail,  which looked to be from Princess Peach. The scribbly handwriting asked  him to come over for cake. He jumped feet first into the warp pipe in  the front yard of his house, but something went wrong! The pipe was  enchanted by Kamek! Instead of leading him to Peach, the pipe was cursed  to take him to Bowser's castle, and to trap him so only his legs would  stick out of the pipe, positioned in front of Bowser's throne. Bowser  enjoyed slowly removing his shoes and tickling his wrinkling soles,  thinking of who he might capture next. 

Thanks to DA's ultramantickler for not only the the image but also for the amazing short story as well.