HOW TO TONE my back and lose rolls of BRA FAT

Ok, let the lecture begin 

TONING does not exist. You either make a muscle bigger or you lose fat in order to get that "defined" look

Spot fat reduction, meaning losing fat in only one place is impossible (except with liposuction). You dont get to decide where the fat is coming off. Sorry

What I would do if I were in your case is lift weights so you build a bit of muscle and that will help with that "Bra Fat"... you know the classic, pull-ups, inverted row, etc.

Have a look here:http://www.askscooby.com/excellent-postings/21-workout-routines-37958/ , pick a routine from there or use scooby's website for exercise reference and possible workouts 

BTW, I just looked into this "Bra Fat" (I aint no female so I had no idea what is was  ) and it may be partially solved by rear- shoulder exercises (face pulls, rear delt row) combined with good nutrition and cardio. If you dont know a particular exercise, this webiste will help a lot: http://www.exrx.net/Lists/Directory.html

WHAT R THE 21 ROUTINES?

Link didnt work first time..

http://www.askscooby.com/excellent-postings/21-workout-routines-37958/

What are the exercises you currently doing?
Do you have access to a gym?
Questions for more in-depth help

YES I AM SKINNY AND STILL HAVE BRA FAT OR BACK FAT AND ITS SUPPPPPER BOTHERING ME...without it i would have a perfect body.
I used to do swimming 4 years ago and stopped cuz I had a lot of studies and just got busy with life...I had a back surgery (scoliosis) which is the major cause problem of that bra fat cuz the side wer they cut has more rolls or fat than the other side. i think building muscles in that area (latisimus dorsi) would burn the fat eventually...

currently i dont have access to gym but i will soon. Im training at home everyday the bend over exercise that scooby has mentioned for Lat muscles...I cant do pull ups i dont have the right equipment for that. I just wana know HOW LONG DOES IT TAKE FOR THE MUSCLES TO BE BUILT FOR AN AVERAGE PERSON?? How many times a day per week do i have to train...Currently im using 2KG dumbells since i never really did weights so i wanted to start light...wen can i start adding more weight?  Would using the same weight for a year not cause any change in my muscle growth? what can i do to get muscles growing on my back to lose the fat???

Soreness is not an indicator of good workout. Strength gains are. It will take time to build muscle... it is a slow progress and women tend to progress even slower but over time you'll see the difference. For pull-ups, you can do negatives... its an awesome exercise (I highly encourage you to buy a door-mounted bar... I have one and its really good)

Home lat workout, assisted pullups exercises for beginners

Pullups for Beginners

Regarding the workout, choose the beginner from scooby's page or pick one from here: http://www.askscooby.com/excellent-postings/21-workout-routines-37958/

If you can start swimming, then go ahead!

you could do that exercise, it seems ok for oblique and hip muscles. However, like I said on my first post, you can not target where the fat is going to come off. Therefore, whenever you hear saying how to get rid of fat from an specific region, be VERY skeptical. Only thing you can do is build muscle so that loose skin eventually ties up. I already given you the tools to do it, you only need patient since it may take a while

Not to forget the most important thing I wanted to mention!
It's the same for men and women! Women neither need different exercises nor different nutrition. Most "exercises for women" are basically just less effective exercises. There is no need to be afraid of gaining too much muscle mass or starting to look like a man - it won't happen! Doing the "real" exercises will not make you look any differently than the "women's exercises". You'll look just the same - but in a much shorter period of time.