Dear Sailor Letter (part 1)
ETA: The long babble post is up (about 1.5 pages, single-spaced). Also, I found the Ivory Tower Rowena story, and it's linked below.

Hi Author!

I'm already really excited about this, and I will love you for writing me any of the threesomes I'm requesting (especially since, beside the Eureka one, they don't seem to exist on the internet). So, this is mostly my bubbling over, because this time of year is always my excuse to ramble on about fic. Hopefully you'll find it useful!

This is the general part of the letter, and it covers the major points, if you want to stop reading here. I'll be putting up a second part that rambles on about my specific requests more later (this time of the year is also my excuse to ramble on about my fandoms), but, seriously, don't read that one unless you like meta and/or detailed prompts.

I adore all kinds of stories. Fluff puts me in a good mood for hours, plot keeps me up past my bedtime (even on rereads!), and character-examination makes me appreciate them even more. PWP’s are more hit-or-miss with me, but I love quite a few of them, so if they’re what you like to write, go for it. AU's of any kind are excellent, and please don’t feel trapped by what the author might intend (or even definitely did intend *stares at HP*). My focus tends to be on relationships, both romantic and non-romantic, and I love to hear about how other people have affected "my" characters. I tend to have an optimistic outlook on characters: I'd rather see them coping than breaking down and assume good intentions until I'm forced to believe otherwise.

More specific likes: working together as a major element of the relationship, equality in relationships, family by choice, intimacy and trust, competence, sanity*, the influence of history and culture, intellectual discovery, genderswap (of both the always-been and the ‘damn you science/magic’ varieties), quiet understanding, teasing familiarity, action on an epic scale, changing the world.

Squicks: non-con, bestiality, pedophilia, infidelity, utterly hopeless endings (ie, Ethan Frome hopeless; epic tragedy is fine - I love the Iliad, which isn't the cheeriest book in the world), character-bashing. Only the non-con is truly ironclad.

*Someday, I will finish making my animated icon ‘Sanity is Sexy,’ with pictures of all the sane and underappreciated characters in fandom.
 

Stories/Recs
(I should probably mention that none of these (except the Eurekas) are precisely the threesomes I'm requesting, hence why I'm requesting them! They're mostly stories that have shaped my vision of the characters or fit that vision near-perfectly.)

Harry Potter:
Godric/Rowena/Salazar: Luna’s Passing Through Nature to Eternity, copperbadge's Gathering, and a short old AU with Rowena as an absentminded tower-bound (but powerful!) scholar and Helga as the pragmatic warrior sent to protect her that I cannot for the life of me find again :( , by Andrea13 and persephone_kore.
Harry/Hermione/Padma: acadine’s Oral History, edenfalling’s Definitions of Romance, parkergray’s Heart-Shaped World, woldy’s All The Syllables of Loss (note the story good enough to get me past my infidelity issues; this is rare).

Tortall: Kel/Neal/Yuki: Lyss’s waking dreams of snow. There is not enough fic in this fandom, and with my particular trouble finding fic that recognizes the importance of Kel’s relationships with both Neal and Yuki (try finding that on FFN), I do a pretty limited amount of reading.

Eureka: Allison/Jack/Nathan: serene_quill’s A Modest Proposal, gin200168’s Legacy, havocthecat's The Eureka Field Guide to Zombie Invasions.

Also, this may not be evident from the stories recced above, but I like happy stories. A lot. Almost always, in fact. I just have trouble finding them sometimes.