I had a cat "poppy" and when he was 8 months old decided he needed a friend. I brought home a kitten we named "blue". Poppy took one look at blue and swatted him in the head.
Poppy spent the next month hiding in the closet.
Once he got over his initial hesitation. He and blue became best friends. Did everything together. They even slept in the same bed.
My hope is that your two pups bond like my two and have a long, loving relationship.
Sadly, both poppy and blue have passed away but the memories of them being so close, makes me smile every time.