Ways to lose weight without decreasing the size of your boobs...

I would like to loose about 50 pounds however I'm afraidthat if I work out I'll loose the size of my boobs. I really don't want to so I was wondering if there are workouts or something I could do where that wouldn't happen. Also what kind of diet should I have? I've already started becoming a vegetarian. I would like to loose most of the 50 pounds before the end of January. I know there are work outs you can do for your butt to make it bigger and more fit... Any suggestions? Thank you so much! :)
Ways to lose weight without decreasing the size of your boobs...
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