And then you could do what I did to my baby sister (15 years my junior and by then I had 2 daughters- her contemporaries- who were happily BFing) . I told her if she didn't BF I'd never speak to her again! Depends on your style and relationship. And my son who told his wife (from a bot fdg family) that she couldn't have a baby unless she BF at least 6 mo. She's had 4 now and they've each nursed over 1 1/2 years. I do like the positive modeling idea and at least your sil's babies got that good start. Sincerely, Pat in SNJ