Is it OK for you, a neighbor, and your friend to agree on the toppings of the pizza and then for your neighbor and yourself to "vote in" different toppings for

Is it OK for you, a neighbor, and your friend to agree on the toppings of the pizza and then for your neighbor and yourself to "vote in" different toppings for every succeeding pizza? Your friend consented to the first pizza, but he didn't consent to any pizza after, except insofar as you can say that his remaining a member of the pizza-owners' association represents actual consent.