question about my cats...

I've heard from different people different things about what my cats are doing. I have 3 of them 2 boys and a girl. every now and again their tails stick straight up in the air and twitch. Is this a good thing?

Please let me know...I just want to know if my cats are content

:confused:

Welcome to Pettalk, and as long as no pee is coming out when they twitch, it means you have very contented kitties. ;)