The "Real Family" trope

It occurred to me last night that I have a real weakness for writing "real family" crossovers. I know, it's not like it's a big secret or anything, because you've all read these fic things, but I think it's time for a list.

Real Family fics (to date) by Mhalachai

Inevitable (Anita Blake/Harry Potter): Harry Potter is Damian's grandson.

Physics of the Spin (Gilmore Girls/Stargate): Rory Gilmore is Rodney McKay's daughter.

Hey Little Sister (Supernatural/Stargate Atlantis): Elizabeth Weir is John Winchester's cousin.

Obituary (Anita Blake/Buffy the Vampire Slayer): Nathaniel Graison is Joyce Summers' nephew.

Secrets series (Firefly/Merry Gentry): Inara Sera is the ever-so-great-granddaughter of Merry Gentry and Doyle.

Demons, Eh? (Supernatural): Sam Winchester is the spawn of the Celine Demon.

The Roadhouse Series (Angel/Buffy the Vampire Slayer/Supernatural): Angel and Ellen Harvelle are parents to lil' Jo Harvelle.

Outside Looking In (Anita Blake/Supernatural): Sarah Blake (SPN) is cousin to Anita Blake.

Dark Vancouver Nights (Harry Potter/Tanya Huff's Smoke books): Harry Potter and Lee Nicholas are distant cousins.

Mirror'd Through the Rift (Torchwood/Dr. Who): Gwen Cooper is the twin sister of Gwyneth, servant girl in 1869 Cardiff.

I need some srs help. Either that, or I need to challenge myself to write more of these lovely crazy stories.