So sweet, especially the way they both ended up in the same bed in the first place. :)
Severus' annoyance over how domestic they'd become was very amusing. And this description of Lucius made me giggle:
Sadly, Lucius' conversations consisted mostly of haircare woes, fondling his cane and pondering whether Narcissa Black would prefer adjoining rooms or separate wings, per the Malfoy tradition, after they wed.
I liked everything Harry said in the sex scene, how he made those gentle and goofy jokes about getting a present and about the usefulness of his offering. The "little Slytherin" and "pretty snake" lines were hot.