You knew it was a mistake. Having looked at the toned, muscular, jockish form of Mark you could feel the lust stirring within you again. What would he look like if he caved in fully? Would he look like Rodger, the huge minotaur they had left behind. He had looked so happy, so happy...
No... I can't just let my humanity slip away, you thought. Rodger may have been happy, but there wasn't much left of the old Rodger, once he had given in. He was just muscles, strong muscles, those huge pecs - that strong abdomen and those arms.
You could feel your self control slipping away piece by piece as you tried to force out the images in your head of Rodger's pleasurable transformation. Your cock started to pulse, as it again leaked with pre.
"I've...got...to...fight...this" you gasp out. Your mind is now taken to your current state - your muscles, your dusting of hair, your cock... It feels so good... you thought. So good... maybe I should just let it take its course. I might be happier as a beast, you tried to convince yourself. The longer the internal battle raged in your brain between your human side and the all consuming lust, the stronger the lust became.
I can't spend the rest of my life as a beast... you thought, as you tried to rally your senses. "We have to try and get out of here" you get out as you suddenly noticed Mark, who seemed to be staring almost hypnotically towards your muscular body. An internal battle was raging in his mind too, only the lust seemed to have gained the upper hand.
Mark starts walking towards you in his trance like state, as you come to the realization that this can't be good. "Mark, snap out of it" you try as he continues his slow walk towards you. You try to back away from him, but he keeps on following. Without warning, he reaches out his hand and grabs your leaking cock. "Aaaaaaaargh" you moan, as the touch increases your lust. "What are you doing?" you try to ask him, but, as if possessed, he starts working your cock up and down, whilst fondling his.
You know you should run, but the pleasure has almost all but blanked your capacity to move away. Mark's handjob felt so good. With his renewed strength, Mark forces you against the cave wall, as he continues to work your cock. He then reaches down and takes your cock in his mouth, as he sucks happily away at it, whilst still working his own. The pleasure was simply immense and the more you tried to steel yourself away, the weaker your will became until suddenly you both erupted in another orgasmic explosion of white, hot seed. You felt dazed, as did Mark, who you could see what starting to try and process what he had just done.