it just stretch's the whole thing
That question made it sound like you can't speak when using Blender or meshes stop working Lol
And then Martin is like, can you post a picture of that happening please? You accidentally made the funniest question topic Charlene. But yes, give us a little more detail of what is wrong so we can help you find a solution.
This is because you have vertices merged at the lip intersection. could be a result of using merge by distance
