Proper Relationship Etiquette

As Severus drew Hermione in for a heated kiss, it didn't matter any longer that they were as good as wed already and that his married best friend was touching her arse in an entirely unplatonic fashion. All that mattered was the heat, the looks, the sounds and the feelings. Lucius/Severus/Hermione. Written for 2012 Hermione Smut at LJ.