[ Chris is rubbing against him and there's something between them, something like the others and... oh.

(IV looks down and stares at the tendril that used to be his cock)

And then he's moving all at once, the tendril inside Chris's ass slipping out and two of the others lifting him up until he's straddling IV's hips so that IV can shove the new tendril into him in one. ]

Ah... oh god, you're tight...!