Favourite literary pairings

While cruising around the interweb, as you do, I came across a discussion thread on your favourite literary pair/couple [romantic or not]... so here's my list (in no particular order)*

Beatrice & Benedick [Much ado about nothing]
Crowley & Aziraphale [Good omens - Terry Pratchett/Neil Gaiman]
Mairelon & Kim [Mairelon the magician and The magician's ward - Patricia C Wrede]
Harry & Corlath [The blue sword - Robin McKinley]
Cimorene & Mendenbar [The Enchanted Forest stories by Patricia C Wrede]
Jack & Nell [The toll-gate by Georgette Heyer]
Prudence & Anthony [The Masqueraders by Georgette Heyer]
Robin & Maria [The little white horse by Elizabeth Goudge]
Fawn & Dag [The Sharing Knife series by Lois McMaster Bujold]
Magiere & Leesil [Noble dead series by Barb & JC Hendee]
Annabel & Owen [Just listen by Sarah Dessen]
Eric & Sarah [Staying fat for Sarah Byrnes by Chris Crutcher]
Falco & Helena [Marcus Didius Falco series by Lindsey Davis]
Helva & Niall [The ship who sang by Anne McCaffrey]
Grandma Poss & Hush [Possum magic by Mem Fox]
Valancy & Barney [The blue castle by LM Montgomery]
Laura & Sorry [The changeover by Margaret Mahy]

*as always, subject to change at a moment's notice, and totally incomplete because I'm sure I'll think of more...