The suckle is the earlier pattern for babies. There is a back and forth movement of the tongue, and the tongue stays within the baby's mouth. There is not a very strong lip seal.
Around 3-6 months the suck should develop. There will be a stronger lip seal and the tongue will have an up and down movement.
Both of these are different from nonnutritive sucking, as they might to do a finger or a toy, etc.
yuo suck
they both suck
suck ball s
They Both Suck!
suck a dick ;)
slugs dont suck blood
they all blow and can suck my asain wang
nothing. they both suck.
Dc rocks wal marts suck
because u suck give me an answer and stop what you are doing
female mosquitos suck blood and male mosquitos do not.
i want you to suck your pum-pum