The 19-year-old tweeted a picture revealing her beagle cross breed Happy, giving her a kiss as she wakes up, reported Femalefirst online.
"Woke up to sloppy wet kisses from the cutest boy on the planet," tweeted Cyrus.
The former "Hannah Montana" star, who is engaged to actor Liam Hemsworth, also posted a picture of herself with her companions and wrote: "Found my cuddle buddy."
Despite her affection for pets, Cyrus isn't afraid to go places without them - and even entrusts their care to her fans.