It's for you, a male

You give the machine the once over to make sure it wasn't damaged in shipping and then set about putting it together. You slot in the included silicone vagina and lube it up. Remembering the way the the company described the method of setting up the machine, you also lube up the slightly flexible dildo you find in the box and plug the machine into the wall.

Looking at it you feel a slight thrill in anticipation of the previously unachievable pleasures you are about to experience.

You insert your member into the hole and then awkwardly reach down to pick up the control box and the dildo, almost falling before giving up and just pulling out with a suctioning feeling that makes you jump. Back in platoon, you reinsert your cock, press the dildo into your backdoor slowly, shivering at the feeling of chill lube against your rear entrance, and connect the mount point at the base of the dildo to the machine.
With everything in place, you turn it on.