Prompt

The male horse thrusts into the female alicorn from behind with rapid, deep strokes while yanking her ponytail roughly, his hips driving forward relentlessly as one hand delivers a sharp spank across her reddened flank, making her body jolt and her wings flutter uncontrollably. Her breasts bounce with each impact, her whole torso jiggles from the force, and her mane whips with the hair pull before settling into a messy sway. A sudden gush of clear fluid spurts from her as she clenches, streaming down her thighs in glistening rivulets that catch the mountain light. The camera maintains a slow orbit around the couple. The air fills with the rhythmic wet slap of flesh, the crack of the spank echoing off the mountainside, and her ragged, breathy moans, all set against the distant whisper of alpine breeze. Her expression is one of fucked-silly bliss sharpened by the sting of the spank, a dazed smile trembling at the edge of overwhelmed tears.