Fate/Grand Order

Mob (Hornets)/Yan Qing

GRAPHIC/MATURE TW: Noncon, choking, abuse (punching)

Yan Qing is captured by the hornets, who think he's just an amnesiac Assassin of Shinjuku. Clearly the only way to restore his memories is with their bodies...

Fate/Grand Order

Gilgamesh (Caster)/Male!Protagonist

GRAPHIC

Both are still recovering from the trauma of Gilgamesh's death in the singularity.

Fate/Stay Night

Lancer (Cu Chulainn)/Emiya Shirou

GRAPHIC/MATURE/DUBCON

Shirou accidentaly uses Rin's magical shampoo, which has unfortunate side effects for men. Lancer kindly offers to help out.

Monster Hunter!AU

Archer (EMIYA)/Lancer (Cu Chulainn)

GRAPHIC/MATURE

Lancer encounters Archer on a hunt, and is inevitably drawn to him...

Fate/Extra CCC

Male!Hakuno/Gilgamesh

MATURE

Gilgamesh rewards Hakuno for his efforts in the war with a trip to an open-air hot spring.

Fate/Stay Night

Kirei/Gilgamesh

MATURE

Gilgamesh has somehow become the size of a kitten. Sexy mischief ensues.

'Enkidu, my friend, panther of the wilderness, after we joined together and went up into the mountain, fought the Bull of Heaven and killed it, now what is this sleep which has seized you? You have turned dark and do not hear me!'
But Enkidu's eyes do not move, he touched his heart, but it beat no longer.

Fate/Zero
A special thanks for Ebil Trio for the raws!

Kirei/Gilgamesh

MATURE

Gilgamesh implements his 'Lovey-Dovey Campaign', as part of Kirei's lessons in pleasure. Kirei is less than impressed.

Fate/Zero
A special thanks Kireifag's Fate/Unlimited Doujin Works for the raws!

Kirei/Gilgamesh

Gilgamesh thinks on his grief from his previous life, Kirei picks at it.

Fate/Zero
Very special thanks to landxhp for the raws!

Rider and Waver are discussing possible strategies to use against Archer, when who should show up...

Fate/Stay Night

Lancer (Cu Chulain)/Saber (Arturia)

GRAPHIC/MATURE/NONCON

Saber, trussed up and incapacitated by Caster's Command Spell. And Lancer's never been one to turn down a good woman...

Fate/Zero/Stay Night

Kirei/Gilgamesh

GRAPHIC/MATURE

Kirei ponders Gilgamesh and their relationship.
During sex.

Fate/Stay Night

Lancer (Cu Chulainn)/Rin

GRAPHIC/MATURE/NONCON

Rin has lost her servant. With her defenceless, Lancer means to take her life, and her mana - in the traditional F/SN manner.

Fate/Stay Night

Lancer/Rin, Archer/Rin, Archer/Saber

Special thanks to an anonymous over on /tmh/, Anonygoo for the second half!

Several smaller stories, featuring a variety of pairings. In other words, solid smut all the way through.