With silence, at first

The aliens simply smirked and looked at the two helpless boys as they pulled out syringes with some unidentifiable liquid. Jack and Ben looked away as they were injected with the stuff against their wills. After the shots, the metal arms released the naked friends and they fell to the ground.

“What was that stuff?” Jack asked.

“Oh,” responded one of the aliens with a mischievous smile, “That was a special serum that will... get the two of you going.”

“What?” Jack exclaimed, “What do you mean? Why are you doing this to us?”

“Well,” responded the other alien, “If you simply must know...”