<human>: I have a 7 month old kitten which I got about 2 months ago who is the greatest cat I've ever owned (I had a few cats when I lived with the parents, but they always only had one at time). She's never shown any agression or tried to bite me, etc.

Well today, my girlfriend and I decided to add another kitten to the family so that our cat can have a friend. Well, I got the kitten, which is a 7 week old male, and brought him home. 

I brought him right to the litter box (same one Godzilla uses, I'm assuming this was an issue?) and Godzilla freaked the fuck out. Luckily she didn't try to attack him, but was hissing and making weird growling noises. I tried to comfort her and pet her but it honestly felt like she was going to bite me if I petted her the wrong way.

I tried playing with Godzilla and her toys while holding the kitten in my other arm, and she would play with me, but she was only 25% as happy to play as she normally is.

After reading up online, I saw that we need to keep them separated for now, so I have him set up in a room with his own litter box, food, and water.

Reddit, what do I do? I'm freaking out and wondering if I'm going to have to give the kitten away. :( Any help or a story is appreciated.

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<bot>: My 7 month old female kitten wants NOTHING to do with a 7 week old male kitten I brought home. Please help!