"I have the perfect idea!" Rebecca exclaimed. Going into her closet, she found an open mouth ring gag which she shoved into Aaron's mouth, locking it in place.
"What are y... Agah... Aaagaaga!" Aaron's protests became wordless noises. His big sister soon put a stop to that too as she shoved in a fat and long dildo with a specialized shaft. Aaron struggled against the older teens holding him down as the dildo slid down his throat. Its base clicked into place against the open mouth gag it was designed for. Yet Aaron could still breathe. The specialized shafts had a hollow tube connecting his esophagus to his nazel passage, letting him breath through his nose even while deepthroathing the anaconda.
"Wow! You can see the bulge in his throat. Is he going to be okay?" one friend asked.
"Yeah, he can breathe just fine. But deep throating that thick dildo is putting pressure on his vocal cords. See how he's trying to yell at us, but all we hear is quiet breathing?"
Next they tied Aaron's arms security behind his back. Then Rebecca brought in a white bed sheet. It was super light and thin and fluttered down as if it were barley any heavier than air. The smallest breeze would have made it flutter.
The girls pulled the cloth over Aaron's head like a zentai suit, covering his entire face and head. Then they began to slow the neck tight so it could be removed. The material was thin enough that Aaron could see and breath through it, but from the outside, no one could see he was gaged.
The rest of the cloth draped around him to make a ghost costume, though it was barely long enough to cover his privates. It hung down to mid thigh length like a miniskirt, leaving his naked legs clearly visible. One girl began tearing the ends of the cloth, shortening it even further and giving it a ruffled spooky trim.
Meanwhile, Rebecca put on some plastic gloves and began rubbing some goo all over Aaron's legs, then up his crotch and in his butt cheeks. The goo stung as it burned away all body hair, truly making the short teen look like a little kid.
Washing away the goo with a cloth, Rebecca declared him almost ready to go trick or treating. She hung an orange candy collection bucket around Aaron's neck and wrote on it with a thick black marker. "Will do tricks for treats"
"Okay, already little bro?" Aaron tried desperately to shake his head, but with the features ghost head with no eyes or anything it was hard to see what he was going for. "Now have fun. Fill that bucket to the brim for us. And then bring it to the big house on the hill. That's where our party is going to be at. We'll let you go if you do a good job." With that, they sent Aaron practically naked out the door.
A gentle breeze ticked Aaron's hairless legs and made his ghost costume flutter about his naked crotch. With the house lights behind him, his nude silhuett was visible through the thin fluttering cloth. His protests were completely silent. There was nothing he could do. He'd just have to go trick or treating and hope for the best.