Instagram is full of hashtags, which are man’s best friend. And, of course, there is no shortage of adorable photos on the social media site featuring dogs and their adoring owners sharing a plethora of images.

There are numerous Instagram pages that feature dogs and their owners going on adventures together. Others like to coordinate their outfits with their pets. Then there’s Reagan, the labradoodle, and his “Little Buddy” – the family’s foster child – who do both!

Sandi Swiridoff, an Oregon resident, adopted Reagan at the age of 11 months. Sandi was overjoyed when Reagan, a Labrador Retriever/Poodle mix, struck up an instant bond with another 11-month-old foster grandchild.

“There was that instant bond,” Sandi said to NBC News. “They just loved each other from day one.”

The couple is inseparable and enjoys doing everything together, such as cuddling in bed, having pajama parties, and hanging out by the lake. And the two of them have a strong sense of style, frequently wearing matching outfits or even costumes.

Overcome with how cute the pair are, Sandi began to document the adorable bond between Regan and “Little Buddy” on the Instagram page, Reagandoodle.

Two years later, her account has grown to be 125,000 followers strong. The rise in popularity has even paved the way for an Etsy shop where Sandi plans on selling a still-in-progress picture book that is all about Reagan’s relationship with Little Buddy.

The book’s intention is to bring awareness to the importance of foster care. All proceeds will be donated to Foster Parents’ Night Out, which is a non-profit organization.

“I feel like it’s a story that needs to be told in addition to cute pictures,” she explained. “The good that they’ve been able to do for each other, and for foster kids everywhere.”

The book won’t launch until next year, however, in the meantime, there is a Reagan-themed calendar that is available.

Meanwhile, check out some of our favorite snaps below: