Your brother?

You were slightly taken aback by the sudden flash of light and color as the enormous screen powered to life. At first, you were a bit unsure about what you were seeing.

The screen seemed to be playing a video of a dimly-lit room with padded walls. In the middle of the room, you can make out the silhouette of a young man with his back towards the camera. His arms were pulled upward and tethered against a metal contraption attached to the ceiling. His feet, meanwhile, were chained to heavy weights and separated by a metal rod, creating somewhat of an inverted Y-shape. You could sort of make out that the young man was also wearing some sort of blindfold that covered his eyes.

Given the awkward camera angle and the relative lack of light, you were unsure of what you were looking at. You were about to ask your uncle what he was showing you when realization hit. That was Aaron.

"Is that Aaron? And is this video live?" you quickly turned to your uncle and asked.

"Yep, that's him," your uncle replied, giving you a sly smile, "And yes, it's live. In fact-"

He pressed another button and the room that your brother was in soon flooded with light. With light filling the room, you quickly noticed a black object that seemed to protrude out of your brother's backside.

Before you could ask, your uncle answered the question that was in your mind, "Yes, that's a vibrating prostate massager. We're going to keep it in him overnight at a low intensity to build up his anal sensitivity."

Your uncle pressed yet another button and the camera zoomed into your brother's bubble butt which was now visibly clenching and fidgeting around the black device.

"Your brother has an impressive butt. It has just the right amount of roundness and firmness that would be a joy to fuck and have your balls bounce against," your uncle commented as both of you stared at Aaron's delectable behind, "We haven't worked on training him to take on large insertions yet though. How big are you anyways? Are you planning on fisting him? Would be good to understand how far we should take his training."