Our scene opens with a mustachioed clone manning a double-ended pump rapidly filling up with the dicks of two muscular ebony studs. As the air is vacuumed out of the clear acrylic tube their cocks swell and meet in the middle.
Pumping done and their dicks huge, swollen and out in the open, our clone sucks on one stud's meaty pumped foreskin as the other watches, beating off his own massive schlong. The clone himself gets the pump treatment, and his medium-sized prick starts to swell to fill the sucking tube.
Two dark mustached buddies pump up each other as they talk filthy and spur on their burgeoning erections. They "fill the cylinder up" with hot sweaty man meat, then gently slide off the pumps to slurp on each other's meaty poles.
Back in the world of docu-reality, one of our handsome black studs relates the story of a vacuum cleaner salesman wandering in during his pumping session. He ended up with a new vacuum and the salesman got a lead on buying himself an enlargement pump.