Zero grabbed a handful of Odin's hair, using the grip he had to pull him on to his cock. Odin's hands scratched at the bed, clenching and unclenching uselessly at the sheets as Zero kept pressing forward in a slow glide.
"Reach back and hold yourself open. Good boy." Odin moved his hands back to part his red cheeks, his obedience was always rewarded and he had taught Stiles to love the rewards he was given.
Zero pushed two fingers into his puffy hole, scissoring him open a more, his moans muffled around Zero's cock. He pulled back a bit as Odin breathed wetly once, twice, three times before he was thrusting into his hot mouth again, forcing his member down Odin's throat until he was balls deep in his mouth.
He forced another finger into Odin's tight hole, pushing them against his prostate forcefully. His other hand released his hair. He began to swat his ass and withdrew his fingers, picking up a steady rhythm of fucking his mouth. Drool and pre-cum leaked out the sides of his mouth. Odin imagined Zero watching his ass wobble as he spanked it.
Zero held Odin's head in place while he filled his mouth until his cheeks were bulging and he was gagging. After Zero came Odin's voice was a raw rasping whisper, begging to be fucked.