The same as IRL: keep arousal high but prevent from finishing. However there is no visual indication of her edging, so you probably talk about the male one.
Would it be possible to add a visual indicator of her edging by chance?
It doesn't affect much, so I saw no reason to add it. Why would you like to have it?
it would just be used to edge her more precisely and could be used to give her a ruined orgasm if that was ever going to be added in the future :)
