Ben felt the strangely alluring sense of one exceptional arousal, his penis hurt from the thrusting, feeling as if from entering Jen, it grew then in length and added girth.
Never had Ben from any other female companions had he felt them grip his working shaft as did Jen. Her vagina held his tool and as he thrust it, Ben felt like ripples of moving muscle massaging, urging, and coaxing him to an early climax.
Both Jen and Ben lay coupled, joined together as the transformation swept from Jen to encompass Ben. As he felt his penis ache for more pleasures, his eyes widened when he noted the growing pointed ears protruding from under the the flock of hair on Jen's head.
Suddenly the situation turned more than exciting, as Jen in the heat of that moment did grab harshly at what Ben had for balls, she massaging them, urging them to produce a massive surge.
Ben had to that moment failed to note how his balls had swelled, growing much larger and as well becoming quite fur covered in what felt like a heavy wool. His balls then hung looser, the scrotum felt the new weight of balls found only on the largest of male goats.
Jen pressed he lips to Ben, her tongue peeking into his mouth and as she French kissed him her touching caused his teeth to begin the changeover to teeth made for a grazing herbivore.
All this and so much more was strange and thrilling, it urged Ben to become more beast like in his manners toward Jen; and she feeling it happen, reciprocated.
Jen had closed her eyes, wanting only to drink and taste of the sensual pleasuring Ben had to offer. She did not care to know if what she saw early on was making her look different. Had she looked her worst fear of getting a sociological new disease was coming from the beginning of a Satyric dare.
Ben felt his body gaining in warmth, feeling the heat as would be righteous, considering the growth out his skin of billions of hair follicles. In a matter of only minutes the follicles sprouted and began to grow, flourishing as then did to envelope Ben in a winter thick pelt of goat wool.
Moaning both from the excitement they felt, the sensation of having sex did increase as bodies transitioned from one species to a new form not seen yet in many thousands of years.