Cutest Pet on Twitter: Penny!

06/29/2011 AT 9:00 AM ET

Ain’t nothing getting this doggy down!

“Penny is happy 24/7,” Tweeted owner Kimi of Tuesday’s #cutepic winner. “She is pure cuteness inside and out!” We couldn’t agree more!

Do you have the world’s cutest pet? Tweet photos of your furball by 5 p.m. ET marked #cutepic at @PEOPLEPets to play.