Help Me Crazy Cat Lady!

[Snowflake]

Actually, anyone with adoption experience. I'm cogitating on getting a second kitty. It won't happen until my roomie is on her way to Mexico (or if I can manage it, Xmas time). Tango grew up with her brother and they lived in semi-peaceful coexistance (meaning usual play and fighting as is normal) until his untimely passing at a year and a half.

I'm not sure what extacly I need to do to introduce a new cat into the household. Tango absolutely needs a buddy, heck I am sure she is bored silly, mom only plays the same old games and does not play so much that allows some good shredding of Mom's arms with claws. (Of course, I dispute that, I have the scars to prove it Tango)

Tango is now just over 4 years old. I'm thinking I absolutely want another boy kitty. Do I go with a kitten or would it be safe to get an older cat, one close to Tango's age?

How do I introduce them? Keep them separate for a few days to let them sniff under the door jamb? I don't want anyone getting hurt, and I don't want Tango to feel like she's not Queen Bee any longer.

The € & NA household seems to have a peaceful pride of kittehs. Any advice? Readinlg stuff online is only confusing me, clearly I'm just too addled to make this decision alone!