[Birkin presses into the kiss, grasping the lapels of Stein's coat to keep himself from falling on the floor]

I only say it because it's true. [Runs a hand through Stein's hair] You're by far my most valuable possession, and if anyone is actually stupid enough to try and steal from me, they'll pay the price. [Nuzzles against his neck, mumbles] I'd sooner die than let you leave me.