This is Sterling, a pit bull who had already had a pretty difficult life in the past. The 4-week-old dog was abused by his previous owners, so he was underweight, timid, and very wary of adults. Thankfully, his new mom Bethany Leigh rescued him and gave him a loving home. The kind owner understood that the abused pit bull puppy needed as much love and attention as possible to help him to trust humans again. With Leigh’s love and help, Sterling transformed into the sweetest, most confident dog.

“He was so small. I was bottle-feeding him regularly,” Bethany Leigh, Sterling’s mom, told The Dodo. “He had giant scars across his chest and legs. With lots of work and love and training, he has become so sweet and loving.”

Leigh is an animal lover, so she always helps poor animals and foster them in her home until she can find a forever home for them. Sterling seemed to understand his mother’s work, so he also helps Leigh to take care of every animals who are living in their home. He plays an important role in Leigh’s work, and he has become the best foster brother of the little brothers and sisters. He is especially obsessed with fostering kittens, and he bonds with each one in the sweetest way.

One day, Leigh found a tiny kitten in a McDonald’s parking lot, so she picked him up and brought him home. When Sterling met the kitten for the first time, he fell in love with his tiny new foster friend, later named Lux.

At first, Lux was shy, worried and afraid of his new dog foster brother, but with a lot of patience and love, Sterling helped Lux become a confident and sweet kitten. Before long, the pair were inseparable, and they spent all their time together. The big brother Sterling loved protecting and nurturing his little brother.

“When we’re in the backyard and I let Lux explore, if he goes too far or starts to climb the tree I tell Sterling to go get his kitty, and he runs to find him,” Leigh said. “They snuggle and nap together, they both love balls and toys, they love our backyard and play together back there.”

Lux even bonded with Leigh’s 2-year-old daughter, Sterling’s other best friend. They loved playing and doing every possible thing together all day long. However, it was time for Lux to find a forever home, and it was hard to imagine what would happen when Lux had to leave.

Stering didn’t want to let Lux leave, so he convinced Leigh to adopt the foster kitten. Leigh realized that she couldn’t break this friendship and give Lux up to another family. For this reason, Lux officially was adopted and the pair couldn’t be happier about it.