# How can the fluid stream be stuck to the top of flask?

I created a flask and added a fluid stream to the top of the flask. When I translate the flask, the fluid stream goes along with the top of the flask. How do I achieve this when rotation occurs.

   void Start () {
aa.transform.position = new Vector3(bb.transform.position.x,
bb.transform.position.y + 4, bb.transform.position.z);
aa.SetActive(false);
aa.SetActive(true);
}

void Update () {
aa.transform.position = new Vector3(bb.transform.position.x, bb.transform.position.y+4, bb.transform.position.z);
//aa is the fluid stream and bb is the flask
cc.transform.position = new Vector3(bb.transform.position.x, bb.transform.position.y + 4, bb.transform.position.z);
}


The traslation works. But you can see the gap between top of flask and rotation here. How do I close that gap?

// The flask we want to attach to.

// The stream object (assuming the liquid flows from its local origin)
public Transform stream;

// Position of the spout in the flask's local space.
public Vector3 spout;

// By running in LateUpdate, we ensure the flask has had a chance to move