Tweek's been going down the rabbit hole, man. Cryptids, visitors, life forms we humans can barely comprehend. All this stuff is totally real, and totally a threat. He's been seeing them every night and reading about them online every day.

Craig is worried for his sweetie. He tries to get all this nonsense out of his head, because it's clearly getting under his skin.

The thing is, the aliens really have done experiments on him. They really have gotten under his skin. It's all real. Sure, Tweek has pretty bad anxiety, but this time he was right.

The paranoia all comes to a head when Craig tries to solve all of Tweek's problems in a way he's sure will work: he'll just use his dick. Except, arousal activates something slumbering deep within Tweek.

He becomes unwell, only to sprout slick, writhing tentacles with minds of their own. They wrap around both Craig and Tweek with one goal in mind: fuck them holes. Powerless against the strength of the strong, slimy appendages, both Craig and Tweek have no choice but to submit to the alien life form inside Tweek that has them bound and it's determined to make them both cum.