Bran and Talon Doujin Reading Volume 01: Anoko ♂ Donnako ♂ Otokonoko
Obviously NSFW. Guest starring Brandon's creaky chair.
"Das Engellandlied" from the Hellsing Ultimate soundtrack
"My Marie" from the Space Funeral soundtrack
"Tamariu" from the Space Funeral soundtrack
"Penguins' Dance" from the Space Funeral soundtrack
The doujin itself is by SGK. I won't link it but I'm sure you can find it.