This idea you can Blame it to Pawpy x3

Upon receiving some earlier Packed Chrsitmas gift, me and him decided to open them to discover some odd related Pokemon items. While Pawpy had a really neat Helmet, my one was a pretty sassy fan!...

But after we have them open, we discover a note in the end of the box... "Not Open until Christmas..."

Upon inmediatly reading the Note, i started to swell, to get big, fattier! I was unable to hold all the change, my body getting hairier and covered on Fur! While Pawpy get hairier and more muscular, a long tail grew from his spine and he was unable to Ook on surprise! The curse stick on us, and now we are unable to change to anything else for the whole december...

Not even my Potions were unable to unstuck us! We are Pokesimians for december!...
This felt so embarrassing!