Blister filled with semen on my dick

Hi there, I'm Mike.

A few days ago I experienced something so mindblowing and strange that I just had to share it with you all to get your viewpoints.

It was a typical rainy, cold Wednesday evening. I'd taken a bit of time off work to relax and as a result, well, I guess I had let myself go a little in terms of personal hygiene. In the time I was away from work, i'd had that chance for a bit of 'me time'. To put it bluntly, having not showered for a few days my penis looked like it belonged in a french delicatessen.

As I sat on the couch watching an old re-run of 'Dancing on Ice' I felt a familiar feeling stirring in the basement of my shorts. I stared wide eyed as I was treated to numerous upskirt shots of British skating hero Jane Torville.
"Boy" I thought, "I bet Christopher Dean loves watching the slow motion replays" as he prized open Jane's legs for the second time in the last 10 seconds.

It seemed I wasn't the only one in the room who wanted to see the tv. My cock slowly wriggled his way past the elastic waistband of my shorts, peering around the room and fixing his stern gaze on the television.

"I've been expecting you, friend", I chuckled to myself.

He stared back at me, seemingly angry at me for not dispersing the smegma that had built up through days of unhygienic living.

"Don't worry" I whispered. "I'll make it up to you buddy."

I grasped the base of my shaft firmly in one hand, manipulating my perineum with the other. This was going to be a bumpy ride.

I used every ounce of my strength, violenty itching my cock, almost pulling him out by the roots.
The feeling was close. I could sense the pressure building in the deepest pit of my nether regions, spreading it's way throughout my body.
I felt the gush of semen as it worked its way through my urethra. I cried out as the waves of ecstacy washed over me...

But something was wrong. I had not ejaculated. My member had swelled like a balloon. Like a blister protruding from the side of my erection. It is difficult to describe but the semen had made its way up into the shaft of my penis, yet had not been released. As if there was something preventing the fluid from leaving my body.

I grabbed the balloon and continued my manipulation. Smegma smeared over my hand, body and shaft. The smell was overpowering, yet intoxicating. I was drunk on smegma.

The waves washed over me again as another burst of semen pushed its way up from my hungry testes. The 'blister' expanded further, but the pressure was too much and a gargantuan volume of semen blasted from Admiral Nelson's eye with the force of an atom bomb. As I experienced an earth shattering orgasm, my body was showered with a potent mix of unkempt penis smell and semen. I lay there, breathing heavily, whimpering in the darkness as Jane Torville finished her bolero.

I glanced down at my twitching manhood. His eye was shut and he looked at peace once more.
It was fascinating to notice that the blister had deflated back to it's original state.

Many questions spun through my mind. What caused my penis to delay its release?
Should the initial release of semen into my shaft have caused me to lose my sexual desire?
Is my old man capable of ballooning to greater sizes?
Does Christopher Dean pause the slow motion replays?
The answers to these questions I do not know, but the question I put to all of you readers is... Is this normal?

Thanks for reading.