Cat and kitten woes

[Gothgirl78]

I love my cat. I love her so much I got her brother ( much younger, different litter, same parents).

Original cat is sooooo unhappy. Kitten wants to play. Cat hisses and growls. She rarely purrs. It's been three weeks.Will they ever get on?(sad)

It took months before MCat and Little Monsieur would share a lap. So promising indeed for your 2.