RedactedNarrative: V1 WAS TRYING TO DOCK ON A BUOY.  WINDS GUSTING AROUND 20-25 MPH COMING FROM THE NE.  V1 WAS HAVING DIFFICULTY ATTACHING THE HOUSEBOAT TO THE BUOY BALL. V2 WAS TRYING TO ASSIST V1 ATTACHING A LINE TO THE BUOY.  V2 WAS BLOWN INTO V1 COLLIDING ON THE PORT SIDE OF V1