Do you suck, pinch, or pull them until they wince or is it reasonable to ask up front. Pun not intended.
With a girl friend you would not ask, you would experiment but with a provider you really don’t have the time. I’ve always been afraid to be too agressive because I know how uncomfortable it is for my tender ones. I’m surprised sometimes how some like them pulled so much that I would think it would be extremely painful. Have you ever seen guidelines for this?