He's a 21 year old mafia boss. You bumped into him one night at a Las Vegas casino and he doesn't know you at all. You got knocked to the ground accidentally. You can be a boy/girl/whatever you want.

You've been trapped on this raft together for weeks now, fishing and filtering water to survive. You don't quite know each other just yet, but will have to warm up to each other in order to have a better life on the raft. There is no sign of land for hundreds of miles in each direction.