Ruairí

It has been a while since Ruairí last came for a visit, but you've been kept up to date with his progress in taking thicker and thicker catheters and sounds. He contacted you, asking what comes next. You replied that you'd see him again when he could last a whole week with a 30 Fr catheter.

He comes through the door, still dressed for the summer heat outside. His bare upper body glistens with sweat. The ginger fur running down from his pecs and across his abs is damp and matted, especially where it disappears into the waistband of his very short and very tight shorts.

The shiny fabric of the shorts accentuates rather than concealing. You can see his cock pointing up towards his left hip and at the tip the outline of the catheter valve. As a special concession to the weather you've allowed him to be free from the discomfort of a warm bag of piss strapped to his leg.

Ruairí kicks off his shoes and bends over as he pulls down his shorts, giving you a view of his sweaty ginger arsecrack and balls. When he turns around his semi-erect cock is sticking out 45 degrees below the horizontal, the catheter dangling from it. A blob of precum gathers at the end and drips onto the floor.

Taking the warm, sticky catheter in your hand you lead him over to the bed. "Lie down". He complies eagerly. "I asked you to come with full balls and a full bladder. Your bladder I can check with this." You show him the ultrasound device and then press it forcefully into his belly. "620 ml, acceptable".

"Can that measure my balls too?" he asks. You respond by taking his cock firmly in your right hand and starting to stroke it. You feel the silicone tube inside his urethra as you stroke slowly from balls to the leaking tip. You wet your finger in the pool of precum surrounding the catheter and use it to rub the head then return to stroking. As you expected it doesn't take many strokes before he tenses and roars.

Ruairí lies still on the bed, even more flushed and sweaty than when he arrived. Cum oozes continuously out around the catheter. You point to the shower in the corner of the room, "We'll need to get you cleaned up."

Once he's in the shower you approach with a small syringe. You empty the balloon of the catheter and then smoothly and rapidly pull it out of his cock. "You can piss now". He doesn't wait to be asked again, pissing handsfree against the wall of the shower. You close the curtain and tell him to make sure he cleans his dick well.

He returns to the bed when he is finished, his half-flaccid cock wagging above him. It returns to full hardness as you perform your usual careful cleaning of his glans, corona and piss-slit. There's little resistance as you push the lube syringe into the still slightly gaping peehole; he gasps as you empty its contents into him.

"This is a very special catheter. But it's easier to demonstrate the features to you once it's in place." 32 Fr, almost 11 mm, it's bigger than he's previously been used to but his cock has swallowed thicker sounds. The tip slips through the narrow part just past the entrance without too much trouble and you keep sliding the catheter deeper into him.

His prostate is obviously still a bit sensitive; he moans as the tip enters. Just a little further and you reach the entrance to his bladder. The sphincter has already closed up tight again but Ruairí knows the technique by now and soon the outer end of the catheter is nestled up against the glistening purple flesh of the head of his dick.

This catheter is more complex than the previous one, splitting into a small forest of tubes at the end. You fill the balloon and give the catheter a tug to make sure it's firmly in place, causing a grunt from Ruairí.

You connect a set of large saline bags to one of the other tubes and open the valve wide; the fluid rushes down and into him. He squirms a little at the sensation of being filled and more as the pressure increases. You clamp another tube and remove a stopper from it before connecting a small device. Now you can measure just how the pressure is building, how he's being irresistibly filled.

Adjusting the valve to reduce the flow of saline, you monitor the pressure and Ruairí's squirming body. You can see the peaks in pressure as his bladder occasionally spasms. Writhing in discomfort, he refuses to admit that he's had enough. It's just as well that you're in charge.

Ruairí lies panting and groaning after you close the valve, his eyes pressed shut. You hook up a drain tube and release some of the pressure so that he can think clearly. "That was... a lot," he signs.

You connect a syringe of saline to another tube. As you push in the liquid it fills a balloon shaped to press against his prostate. He moans.

There's a black plastic box with rounded corners on the table beside the bed. You move it to sit on Ruairí's abs and then rearrange the plumbing so that it is connected to the catheter and to the saline and drain tubes. You see him peering down his chest at it but it has no markings.

"Would you like to empty your bladder?" He nods, you know he's still uncomfortably full. You take your phone out of a pocket and let him watch as you start an app. One tap of a button and his bladder is emptying, a look of intense relief and pleasure on his face. You let him enjoy it for a few more seconds.

Some more tapping in the app and his expression changes, there's more resistance to his bladder expelling the liquid. Another tap and saline starts flowing into him again, slightly faster than it's draining.

The next tap starts a pulsing pattern on the prostate balloon, alternating between vibrating it from within and giving him a bit of a stretch. He moans in pleasure.

For the next half hour you check your emails and catch up on some admin while the machine repeatedly fills Ruairí's bladder to its limit and empties it. The whole time his prostate is being tickled and stretched.

After one final filling you command the machine to drain him quickly and stop. He's left lying on the bed breathing heavily, his face and chest flushed.

"You're going to have to wear more clothes when you leave." You connect the machine to some fresh saline bags and put everything in a small backpack. The drain tube is replaced by a bag that you attach to his leg. "There are some sweatpants on the chair by the door that should fit".

"I've sent you a link. Whoever you give that to will have full control over your bladder and prostate. They'll know if you disconnect anything or let the saline run out." You use your app to give him a gentle zap of electricity to the prostate to show what will be the likely result. He gasps.

You watch Ruairí get up. He picks up the backpack and walks gingerly across the room, the tubes dragging his hard cock down and to the side. As he pulls on the sweatpants and leaves you think back on the fun you've had with him. Now... who's next?