I think my 'summer house' story was just a little too ambitious so I'm taking a stab at writing something a little bit shorter. TV Guide plot summary: Hilarity ensues when a nanotech engineer with a detachable cock applies to model for an amateur gay porn website. Ultimately what I cant resolve is how the other models discover that his cock comes off. I tried the story with the engineer taking it off during a scene and that didn't seem to work.

Anyone have any ideas which could help me jumpstart this?

The fluffer is a little too over anxious about their job? Maybe too tight of a grip?

sorry, the extent of my porn knowledge comes from watching the movie Orgasmo.

Maybe your nanotech engineer needs to run out for a minute, and doesn't want to lose his time on camera, because if he does, he won't get paid. He leaves behind an important piece, right in front of the camera, and dashes off. The other models stumble in and discover not all of the engineer is there. Just one bit they can have some fun with. A game of 'who's got my cock' follows.

Could be both funny and interesting.