The game of goose has many variants, including different square orderings, different rules for landing on certain squares and different numbers of dice.
The variant you describe (two dice, geese every 9 squares) is quite common, and the rule for rolling a nine on the first turn is as follows:
If the roll is a 6 and 3, move directly to field 26; if the roll is a 4 and 5, advance all the way to 53.
Since you could only roll a nine and land on a goose when you are on the start square, you don't have the opportunity to land on multiple geese in one go from any other square on the board.
The rules quote was from this goose page. Interestingly this set of rules explicitly says moving to square 26 or 53 only applies on your first go. So if you find yourself back at the start, e.g. due to the death square, or somebody landing on you on their first go, then you can throw a nine and win the game.
Another site with two-dice goose rules is here, and it features an image of the game board that shows a pair of dice on squares 26 and 53. This acts as a visual reminder of the rule. This rules page does not allow a throw of nine to ever win the game from the start square, as it associates the rule with the square:
A lucky throw of 9 at the beginning of the spiral path advances a player to one of the fields with dice.
The game of goose has been played over many hundreds of years, and plenty of variation has been introduced during this time. Consequently the important thing is to pick a set of rules everyone's happy with before you start the game.