Keeping Alex on the edge, milked him eventually

We were doing one of our BDSM cam shows. I was milking and sucking Alex when he was tied to a small sofa and completely immobilized. And we almost got caught by his grandpa in the middle of the video! He saw the light through the window and he knew Alex is at home. He kept ringing the bell and knocking the door. I had to make an excuse about why we can't let him in. That was awkward! Alex got soft immediately but with the help of a magic massager, I made him hard again. His all stress just gone and we could finish the job! Finally, he released his big load on his belly.