I have short/flat nipples. Lo latches on though. But I'm worried that once bottle introduced he will prefer the bottle due to longer teat aka "nipple" and reject my nipple and forego latching altogether. I'm really afraid and don't dare to introduce bottle to be honest..I failed latching my #1 in the past and don't wish to fail with my #2 now that things are going ok the past 1 month...sigh..