A blind kitten tried to break into another cat's pen, determined to be his best friend. Theo and BillieFoster the FurbabiesEarlier this year, Gianna and Gab, sisters and co-founders of Foster the Furbabies, rescued a tiny kitten who was in desperate need of help.Her eyes were so severely infected that they couldn't be saved. But despite everything, her spirit never faded. After surgery, she bounced back with a hearty appetite and a renewed zest for life.Though blind, the kitten, named Billie, refused to let anything dim her joy. All she wanted was love and a friend to share it with. BillieFoster the FurbabiesBillie's little purr engine never seemed to stop running. She made "biscuits," rolled onto her back for belly rubs at mealtime, and filled the room with her playful antics.She quickly learned to navigate her world through sound and scent, chasing toys, finding her food bowl, and mapping her surroundings with astonishing confidence. The only thing missing was a constant playmate. Foster the FurbabiesAround that time, the rescue took in a young tabby named Theodore (Theo), who arrived with leg and foot injuries that made walking difficult. He couldn't bear much weight on his front legs, but didn't let that stop him from seeking affection.The moment he saw his foster mom, his face lit up, and his purr filled the room. TheoFoster the FurbabiesGianna set up a cozy playpen for Theo while he recovered and completed quarantine. But the moment Billie heard him, she became instantly intrigued. She was determined to be with him, and nothing was going to stand in her way."Billie kept finding ways to open the playpen and climb in with him," Gianna told Love Meow. Billie was immediately intrigued by her new friendFoster the FurbabiesBillie proved clever and unstoppable. She figured out how to unzip the playpen, sneaking in again and again just to curl up beside her new friend. Using her other senses, she outsmarted every barrier in her path."When they were finally able to meet, she wanted to be best friends immediately." She managed to unzip the playpen so she could curl up beside TheoFoster the FurbabiesAs Billie's confidence grew, so did her sense of adventure. She explored every corner of the house, discovered the cool breeze drifting through the window, and listened to the chatter of birds and neighbors outside.Gianna's resident dog, Gemma, took Billie under her wing. Billie adored her, rubbing her face affectionately against her canine friend. Billie and GemmaFoster the Furbabies"Once they were both healed, they started playing together like crazy. They chase each other all around the house and entertain each other all day long. And they both love playing with their foster sister, Gemma."Theo quickly took on the role of big brother, showing Billie the lay of the land. Theo, Gemma, and BillieFoster the Furbabies"She would follow his sounds and learn how to navigate from him. Neither of them let their ailments stop them from doing anything."When they're not tumbling around, they can usually be found snuggled uppaws entwined, heads tucked close. "Theo likes to give Billie baths, and she loves the attention. They are always together, no matter what they're doing." Best of friendsFoster the FurbabiesThrough resilience and love, the two best friends are thriving, and now they're ready for their next chapter: finding a forever home together.Billie and Theo came from different paths with no connection to each other, until fate brought them together. They formed an instant bond. "I feel like they're soulmates." Foster the FurbabiesToday, Theo, Billie's seeing-eye kitty, runs around the house like a happy little T. rex, with Billie faithfully following close behind. Though Billie can't see and Theo has a bent leg, neither of them seems to be bothered.Together, they are whole. Foster the FurbabiesShare this story with your friends. More on Billie and Theo (in South NJ) and Foster the Furbabies on Instagram @fosterthefurbabies and Facebook.Related story: After Days They Found Missing Cat, When She Saw Her Kittens Again, She Immediately Went to Work