I think it isn't her only scene with them because when she talks about her gaffe(where she goes to sit down on the seat that isn't there and falls on her backside:) she talks about Jared laughing at it. Jared wouldn't be there unless he was in the scene, Jensen may not have been there at that moment but...he's probably not far away. Which says to me she probably shows up to "help" them, due to her inadvertant troublemaking(wow it didn't take them long to put her on the road to redemption)