Muscle slip or something else? Can this be fixed? (Photo)

Went back to my surgeon who said the top of my right breast is a possible muscle slip. He also said there is really nothing I can do to fix it because it's my pec unless I go bigger. I don't want to go any bigger and feel like something isn't right. I ask to do fat grafting to the area and he said I didn't need it. He wasn't interested in doing a revision either and said it would be expensive without much benefit. Can this be fixed? I do have another apt with a second opinion.