I'm having trouble getting my 8-week- old to flare her lips when latching. She opens big, but I can't get her to "pucker". It's not painful for me, but uncomfortable, and makes my nipples sore after, but they aren't so much sore DURING the feeding. I know it's incorrect as everywhere I have looked they say that babies need to have the flared out lips, but no matter where I look they never say just how to accomplish that... Again, she opens wide and has been gaining weight really well, I just know I would be less sore and she would be getting milk more efficiently (and perhaps more quickly) if we can get the flared lips down. Any ideas?