[He smiles into the kiss before pushing Stein's labcoat off his shoulders and wrapping his arms around his neck]

[Birkin pulls back suddenly, a slight frown on his face] There's something I've been meaning to do for a while, actually... And now seems like as good a time as any... So... [He takes a deep breath and lets his face soften as he pulls off his wedding ring and drops it in a pocket]

[With an almost relieved look on his face, he leans back in for another, more passionate kiss]