Serana (Skyrim). Upon the discovery of the vampire Serana's resting place, the Dawnguard sent their best man to ensure the nightwalker never rose again.
After piercing her heart and watching the last breath escape her lips, the Dawnguard knight was enraptured by her figure and knew he could not waste such a blessed body. For hours he drained his seed within her cold orrifces, applying magic to keep her from fully entering rigor mortis before he was satisfied. After exhausting himself, the knight set alight to Serana's corpse leaving nothing but ashes.