Boob loss

Sorry to be so straight forward, but basically I want to lose 10 pounds and gain it all back in muscle through strength and abs.
I am currently a 34B and would prefer to not get any smaller. I just wanted to see from the females on here who have had around the same goals as me how the weight loss or muscle gain affected their chest?

I already know it is impossible to spot lose, but I just want to see how much could be affected while I'm doing this.