... growled in a low guttural bass, as you felt your spine lengthen, forming a small tail. You looked back and stroked it with your fingers. It felt so good.
'Why didn't I give in sooner' you thought as you basked in the pleasure. The hair on your body was now forming a light dusting of fur, apart from on your chest and abdomen, where it still remained relatively sparse. Your whole body felt alive with energy and your muscles felt pumped and ready for anything. Having looked at Mark, taking in his tall, athletic yet young form immediately set your now 13 inches back to action, throbbing with need. Without thinking, you take you had down and start mindlessly playing with its pulsating length.
'But wait..." you thought, "Mark should, no...has gotta experience this." The words played out in your mind, as if spoken by someone else. "Yes, he would love it and would look soooo good...' The words trailed off in your mind as you started to aproach Mark, who you could see was struggling hard to resist the urge to stimulate his own pulsing cock. 'He need help," you thought, as Mark sees the pleasure, no... hunger in your eyes. "Stay back" he almost whines, as you approach, clearly conflicted.
Mark's mind snaps back into action shortly before you reach him and he makes a run for it. But with your new found strength and energy, you quickly catch up to him before he reaches the mouth of the cave and you pounce on him. With one swoop, you pin him against the cave wall and start grinding against him and his oozing member. At first, he tries to resist, but the more you grind your monster cock against his, the more his own pleasure starts to build and he starts enjoying himself. He moans, as the dam breaks and his cock spews forth its creamy load onto his tight abdomen. You feel an instinctive urge to lap up the warm white creamy liquid as your own cock pulses out its thick seed.
You and Mark are both again caught in a state of post orgamic bliss as...