The ray gun in Leo's hand quivers as he creeps through the dark. He's done his best to keep his breathing light, but it's difficult when every noise makes him want to startle out of his custom-made encounter suit. Any minute now, he’s sure–  
Muscular arms emerge from nowhere to wrap around his shoulders. "Boo," a voice purrs in his ear, soft and dangerous. 
Leo yelps and twists, trying to aim, but something hard--something long, thick, and curvy-- grinds between his legs, throwing him off balance. He flails like an idiot, and that's all his attacker needs to sweep Leo up and toss him over one shoulder like a sack of potatoes, sending his gun clattering to the ground.  
"Put me down!" Leo yowls, scrabbling at his attacker's seemingly impenetrable orange coating. "You're in direct violation of Space Force Regulations 26.78.90! Assaulting a SP Officer is grounds for--" 
His abductor's free hand comes down on his ass with a meaty smack and Leo cuts off with a yelp. His voice is twisted between pain and something...something that is very much not pain. 
"While you, my dude," the alien croons, squeezing and fondling Leo's cheeks without breaking stride. "Are in violation of Yadda-Yadda Regulations One Billion for struttin' around with this nice juicy booty of yours--" Leo cries out as his pants are yanked down, and his tail doesn't move fast enough to stop rough fingers from plunging into the wetness between his legs. "And this damp, dripping pussy."
Leo's thrown down on a soft, spongy surface and scrambles backward. "You won't get away with this," he says harshly. 
"I agree." Massive hands rip Leo's uniform off as he squeals and struggles, baring him to hungry eyes. Leo squirms under the gaze, fighting the urge to start rubbing his damp pussy against the bed. "I don't want this gettin' away from me, soon. I want to explore your tricks and treats, all through Halloween night." 
Leo lifts his head to glare at the figure standing over, a green-skinned predator clad in jarring orange and wearing a vicious grin. In Earthling terms, he supposes the getup could be described as a "sexy pumpkin." A very sexy pumpkin, with all his attacker’s freckles and muscles on full display. 
And between the pumpkin's legs? Leo swallows, mouth going dry at the huge, gently curving strap-on that blossoms like a flower, covered in bumps. Or, rather, two strap-ons, both sprouting from the same root, both stretching towards him like hungry hands. The whole thing is bright orange, of course. 
Speaking of holes, his (slicked open, of course, per Space Force Regulations) aches almost as badly as his cunt at the sight. Want aches in Leo's veins like a sugar rush, fizzing relentlessly. 
Still, Leo tries to gather himself, as befits an SPO. "D-do your worse," he rasps, trying to look as fierce as possible in an attempt to distract Mi--that is, the enemy pumpkin from the way he's grinding against the sheets. 
The bastard pumpkin sees it, of course, and smiles even bigger as he crawls onto the bed, forcing Leo back onto his shell. Leo tries to hold into a whimper as that monster cock brushes against his slick, trembling holes, but it slips out anyway. 
"Don't mind if I do, sweetheart," his abductor purrs. He starts to nudge in ever so slowly and Leo lets out a desperate little squeak of pleasure. The pumpkin laughs, vibrations humming through Leo's poor, desperate body as the coils force deeper, and deeper.  
Leo tries to rally, but it breaks down into a desperate churr, his hands clawing weakly to no avail. Their lips smash together and the nasty little pumpkin swallows his moans, chasing them as if he's bobbing for apples. 
It is, Leo thinks, going to be a very long Halloween night. And as the pumpkin sends him reeling with the first of many vicious thrusts , he can't help thinking he'll enjoy every second of it.