Mark just stood there, unable to process what had happened to him. In the meantime, Rodger was getting used to his new hooves, which had now replaced his feet, whilst his monstrous bovine cock was still at full mast.
Still covered in Rodger's cum, Mark started to twitch, slowly at first, but then ever increasing in speed. "Ah...ah...ah...!" he moaned lightly and in doing so, got a taste of the cum covering his mouth. It tasted good. He licked his lips, wanting to get more of the taste.
The twitching became more intense following his licking, although he was still trying to resist the lust. "No...I...can't...must...resist", Mark said his face screwing up up in anguish, as the twitching continued. You could see that it was taking all his strength to resist the almost orgasmic rush, which was causing his rhythmic twitching. The twitching increased in speed "Ah...ah...I...can't...take... this...much...longer." Suddenly, with each twitch, his muscles started to bulk. His arms and legs became slightly thicker and a set of abs began to appear on his abdomen. "Got...to...got...to...have more" he cried, spotting Rodger the minotaur's still erect dick.
Again, you couldn't move, your feet almost fixed, as you stared at the scene before you. You know deep down you should run, but the sight before you was too overwhelming, not to mention that pre was trickling like a fountain from your longer, thicker yet ever stiff dick. You watched as Mark began to walk towards what used to be Rodger, twitching as he made his way forward and with each twitch, pre was flowing from hist still human dick. He stood before Rodger, who made a bestial grin as Mark began to suck his bovine dick. A deep growl emanated from Rodger, clearly enjoying Mark's sucking, whilst two horns began to emerge and thicken on Rodger's forehead. Rodger started stamping his hoof as his lust increased.
Mark's twitches increased and you could see his shoulders slowly expanding and his back packing on more and more muscle. His dick was also pulsing, becoming larger with each twitch. His hand moved down to his own dick as he started to stroke, having now lost all resistance. Rodger bellowed as he shot a thick load of cum into Mark's mouth.
Mark just stood there, dazed, his mouth full of cum until. Having swallowed the majority of the seed in his mouth, he started growling, quietly at first until "GRRRRRRAAAAAAAARGH!". Mark screamed, leaning slightly backwards, arms outstreched, his muscles exploding with growth a thick and continuous shot of pre flowed from his dick. He grabbed his dick and started pumping, pumping with all his might as hair started to cover his now almost star bodybuilder-like frame. His mouth opened and as you noticed his jaw become more square and his teeth sharper, his now long tongue lolled out of his mouth as he began frantically panting like a dog. Claws formed on his hands and feet as the covering of hair became a dark covering of fur. A tail began to emerge from the end of Mark's spite as his muscles continued to grow, his ears lengthened and his jaw started to lengthen into a muzzle. He was now taller and even more muscular than the beast before him that used to be Rodger. "Urg...urg...grrrr" he growled and panted as his cock started to develop a sheath. He was now using both hands to pummel his large canine dick, which was staring to form a bulb at the bottom. "Grrrr.....grurrrrr...grrrrraaaaaaaaaaaaaaa!!" he howled as a torrent of cum shot from his canine dick.
What used to be a young, man was now a hulking, black fur-covered canine beast, with the face of a dog, claws for hands and feet and who stood almost a foot and a half above the Minotaur which used to be Rodger.
You stood there thinking "I have to go, now!", when suddenly you noticed the great canine beast and the minotaur had turned their attention to you...