To spread your lips open. Does it feel good? Does it hurt at all? What about if a guy spreads your lips open?
I assume you mean labia not mouth. it causes absolutely no pain at all. my boyfriend spread me every day wide to see if I mess around while him out and about. silly because can't tell anything by looking at but make him think I good girlfriend faithful if no see any sperm inside . when he lick or bone me they spread easy with no discomfort