Realize that pilots at different bases (or from different previous airlines) seem to handle, "who gets the landings," very differently. In general, I mostly had captains who would see who needs the landings and divvy them up accordingly. Even had a few captains give away both landings to us FOs because he had just finished CQ. However many just take the 1st landing and let the two FOs figure out who gets the other landing. Just expect to go to the sims for bounces. Not a big deal and you can often make some extra pay for it.