well when she does it she is only comfort sucking. so only really is holding it in her mouth or just doing little half sucks anyway itms.
if they dont hurt it should be right? Right?
if it is annoying you, it is ok to change things. I reckon kids can learn some great lessons from feeding at the breast, and learning that you have rights too, and mum's body is actually mum's, can all be taught gently and with love.