I can take off in drive but once I decelerate the transmission begains to slip

What is your question?

I can take off in first but once I apply the break my transmission slipps i turn off car it sits for 10 min then i can take off again but again once I apply the break the transmission slipps again. What's wrong ? Plz help me I can cycle thru all my gear and get no play

What makes this problem better or worse?

It's better when its cold

How long has your 2005 Cadillac STS had this problem?

A week now