I need to provide some context for this. I got a kitten around 5 weeks old from a family friend, and she stayed with me for about 3 weeks (about 2 months old). I have done a lot of research saying it's best to get another kitten as it teaches them how to socialize and minimizes aggressive behaviors. As a solution, I adopted another kitten from the same family friend thinking that sibling kittens might get better along (both female sisters/same litter).
Currently I am housing them in my room which is somewhat small, and they occasionally have access to the house. Thus, they are sharing food bowls and litter box due to the minimal space there is. But I will be home a lot because I am on summer break.
It's been 2 days, my first kitten has been stalking and wanting to engage in a lot of play with the new kitten. However, there have been moments when my first kitten might get too aggressive (maybe showing dominance?) with her new friend and I don't know how to deal with her behavior. Are there any tips someone could give me to encourage them to play nice or not overly annoy each other's presence? But when it's nap time, they usually sleep together, so it might just be them being playful.
In a couple months, I will move back to own place where I rent a room (that's about twice bigger than my current room) with more space to roam and a patio for them to chill around. But little to no access around the new house and I will not be home as often due to school. Would this be an adequate living space for both of them, or should I return her sister and count these past few days as a sleepover? Haha.