We already knew that dogs and cats are capable of being besties, but now there's this: video evidence of a guinea pig and a Boston Terrier getting along like it's their job.

The best part comes at about 30 seconds in -- after the guinea pig gets a "bath" -- when both pets seem to shoot their owner a, "Wait -- you're filming this?" look. It's 50 seconds of pure d'aww.

Via Tastefully Offensive

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  • Hold Still

    You've got something in your ear.

  • Where'd You Go?

    When the grooming is done, Lexi gets up to leave, so Jack the tabby cat makes a desperate reach for his pal to stay.

  • Face Grooming

    Kitty face wash.

  • Roll Over

    Perfect, just stay like that while I clean your fur.

  • Express Grooming

    Quick grooming session before the dog goes out to play.

  • Perfectly Relaxed

    Finally, some time to relax and enjoy a grooming after a long day of running around and barking.

  • A Lot Of Hair

    This could take awhile.

  • Size Difference

    Giant dog being groomed by an adorable little kitten. Enough said.

  • Exhausted

    Isabelle is clearly too exhausted to groom herself, so Weezie takes care of it.

  • Bathed In Sunlight

    Obviously the sunbeam has put this cat in a good mood, so he offers to groom his friend Baxter.

  • Grooming And A Cuddle

    Before bedtime, the puppy needed a good grooming.

  • Groomed To Sleep

    Miko is so relaxed by the grooming that he just falls right to sleep.

  • Missed A Spot

    That little white patch always gets dirty.

  • Preoccupied

    While the big pup is preoccupied, the cat swoops in to do some grooming.

  • Face Grab

    Holding the puppy in place for the grooming.