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Too embarrassed to crank one at the hospital, but not too embarrassed to have a machine suck you off while you stand at the row of machines with all the other donors. Urinal etiquette does apply, btw! Don't be That Guy who goes straight for the middle BJ Bot!
If they configure them face to face, they could probably build one machine that jerks off two donors at the same time, on the upstroke and downstroke.
We'd have to account for their height, wouldn't we?
Height’s irrelevant. You need to measure the dick to floor ratio.
Well, it's just a compression algorithm, we can apply that
Just put the shorter one on a stool.
Mechanical docking machine
What's the matter? The machine will cover your junk. Plus you can high five your buds after you finish together.
I’d hope they’d at least be in stalls so that I can only see the feet of the dudes getting sucked off on either side of me.
We'll you can hold hands with buddy on next machine. Helps to make itess stressful