I had tried getting her sister Hazel to take a bottle, and not surprisingly was unsuccessful. By 10 weeks of age they are old enough to wean, and rarely have any interest in a bottle. But on a whim this afternoon when I had finished feeding Latte, I tried giving the little that remained to Itty Bitty. And once she realized what was in that bottle she was 100% for the idea. I ended up fixing her a fresh bottle which she happily guzzled. So now we have two bottle babies.