Nightmare: Mutant Lizard's shot into the Mouth

The guys and I found ourselves in a derelict construction yard. The moon was hanging high in the sapphire sky, outshining the myriad of stars sharing the space with Mr Moon. All was quiet except for the constant croaking of the bullfrogs and the chanting of the crickets, like a half-past-6 symphonic orchestra attempting its very best.

Everything in the near horizon were heaps of scrap metals and the occasional crane, with their necks poking out into the sky like robotic brontosaurus' peering out for their mates.
One of my mates lighted a cigarette and drawled nervously on the fag, exhaling a plume of smoke into the stagnant air. I turned to look at him to ask for a puff when I saw the saliva-drenched fag drop out from his quivering mouth. I spun around to look at the direction his widely opened eyes were staring at. To my horror...

A 6 foot tall, muscular mutant lizard loomed out of the darkness and grabbed one of my friends with its scaled hands. It was William who was the target! Before we could resist or offer any semblance of assistance, the Mutant Liz took hold of William's hand and placed them on what seemed to be a penis.
(At this moment, I do not know for sure if male lizards have the same reproduction genitalia like us humans, but what the heck?! It was a Mutant Liz anyway!)

Rapidly, William's hands were stroking the penis vigorously, like how a testosterone-charged teenage boy would masturbate when watching his first porn video, except that now, the boy was William, but the prick belonged to the Liz. Without warning, the lizard shot a load of whit sticky substance (u-know-what) into William's gaping mouth. Subsequently, William collapsed like a heap of potatoes onto the gravel-covered ground, apparently unable to withstand the load or shock during his close encounter with the Mutant Liz.

As the Mutant Liz seemed to be enjoying his premature release of joy, the guys managed to shake themselves out of their shock and started plummeting the disgusting creature with all their might.

I was using all strength I had and pulling no punches when the Mutant Liz's reptilian tail smacked me right in the face!

I opened my eyes...daybreak...I was awake.