soften ur lips, kinda like ur gonna pucker up but stop right before ur all the way there. have a gap between ur lips (abt enough to fit ur finger in between horizontally) & then just sorta fake chew like dont let ur teeth hit together but do the motion, slowly. practice on ur finger (that will be the other persons lip) & eventually add some subtle tongue in there like slight licks & teases but thats basically it

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