You know Ruairí has been enjoying the thick metal and flexible silicone sound combination you left him with at the end of his last session. He's been a very good boy, checking in every morning with a picture showing them in place and responding quickly to your requests for spot checks.
The fuckbuddy who first sent Ruairí to you has also been pleased, reporting that he has enjoyed playing with Ruairí's plugged cock and teasing his prostate with the long silicone sound.
Now it's time to go further, or rather deeper.
He enters, naked and erect. The tip of the metal sound glinting at the head of his cock, the matt flexible sound firmly plugging it. It's quite mesmerising to watch it sway as he walks but you have work to do.
You wave him toward the bed. This time the instrument trays on the trolley beside the bed are covered in sterile drapes, preventing him seeing what you have planned for him.
As he lies down on the bed his cock points straight up toward the ceiling, twitching gently. You rub the underside, feeling the point where the hard metal sound ends and pushing the pliant silicone from side to side within his urethra. You pop the silicone out of the metal at the tip, releasing a glob of precum.
Pulling on the end of the silicone sound you withdraw it slightly and move it in and out a few times, gently tickling his prostate. He grins then moans as you pull it all the way out. More precum flows out after it, running down over the metal and onto his glans.
The metal sound is a little sticky, you rotate it slightly and massage his cockhead around it to release it before twisting and pulling it out smoothly. His peehole gapes at you, glistening and slightly reddened. You see more precum flowing up from inside as his cock twitches.
For today's activities you want things to be nice and clean. You fetch a nicely chilled bag of sterile saline from the fridge and set it up on a stand above the bed then fit a thin hollow tube with a rounded end to the tube from the bag. Pointing the tube at his cock you open the valve and allow the cold water to run over his glans. The chill makes him gasp and jump as you wash away the precum.
Of course it's not just the outside that needs to be washed clean. As the water continues to flow you push the tip into his gaping piss-slit. You push it further, until the tip reaches the curve at the base of his dick. The water flows out around the clear plastic tube as you continue to move it around a little, flushing out his pisstube.
When you pull the tube out and the cold water hits the sensitive glans again he grunts and twitches. You run some of it directly over his ballsack just to watch it contract and shrivel then turn off the valve.
You can see the effect of the stimulation as you clean his cock with antiseptic wipes and note that you'll have to be careful. It would be a terrible waste if he came too soon.
Just like last time your lubrication syringe slips easily all the way into him, leaving only the flange and plunger visible. You press firmly on the plunger, compressing his glans against the flange and squirting the lube deep inside. After massaging it towards his balls you leave him for a moment to recover, noting that the syringe starts to slide out on its own.
With a theatrical flourish you pull the drape off your trolley, revealing a catheterisation kit. You lift the wrapped catheter toward his head so that he can see the size, 30 Fr, an outside diameter of 10 mm. He looks both apprehensive and horny, you can see him picturing the length of clear silicone sliding all the way down into his bladder.
As you clean your hands again you hear the lube syringe fall out of Ruairí's gaping peehole. You unwrap the ends of the catheter, leaving most of the length covered.
The tip of the catheter looks small placed up against his hungry piss-slit. Lubricant oozes out over it.
You insert the tip up to and then through the slight tightness then slide the wrapper up. Slowly and relentlessly you keep inserting more until you hit the resistance that indicates you've reached the curve. As you withdraw slightly and adjust the angle of his dick you look up at his face. Ruairí is watching intently, the tip of his tongue glistening between his lips.
The far end of the catheter slides around the curve and further into him. You can see this is still a sensitive area, even though you only recently removed the silicone sound. The catheter is thicker and as it pushes through his prostate he wriggles and moans. It doesn't distract you. You keep pressing on until you feel it stop at his sphincter.
"Relax and open for me, like last time." You apply gentle pressure until the catheter slides in with a pop and a gasp from Ruairí. Warm piss starts to run out of the open end of the catheter.
Once the junction between the two tubes of the catheter is pressed into his glans you stop. You use the prepared syringe to fill the balloon and pull sharply back on the catheter to check that it is secure. He gasps again as it tugs on his sphincter, a whole new sensation.
You take a large empty syringe, without the plunger, and fit it to the end. It fills slightly and then stops when the height balances the pressure in his bladder. Ruairí grunts and the level surges up for a few seconds, his bladder in spasm as it fails to eject the intruder. The level drops back to equilibrium.
