The clothes on David's body looked strained to the limit. She never remembered him as a big man, as a jockey he needed to be small, but now he was easily hulking over the couch he was romancing in his tiptoed stance. Nikka could no longer ignore her own feelings and her own hand snaked back down her pants rubbing herself while watching her friend.
David's body pulsed with energy and every hump against the couch seemed to change him more. Nikka was forced to look at David's shoes as a sharp ripping sound quickly filled the room. David his feet hat grown through his shoes his toenails looked sickly gray and his feet malformed. The middle toes were gaining in size while the rest shriveled away to nothing. The nail on the toe thickening and overgrowing the sides forming what could only be described as hooves. His feet lengthening into proper horse feet the remains of his shoes still dangled on his raised heels.
It was not long before the rest of David's clothes joined this shoes in shreds on the floor by the ever expanding mas that was David. His pants that were already torn down the seams busted open revealing thick thighs and slowly shrinking calves. Nikka her eyes were fixed on what was happening between David's leg's. A long shaft planted between David's thighs was now free to rub itself against the sofa. The shaft hypnotized Nikka as she worked her own vagina.
David and Nikka both reached orgasm ad the same time. David shot his load from the flat tip of his cock head as he threw his head back in a horse like fashion giving a loud neigh. Nikka was far quieter still trying not to bee seen, moaning only slightly as she came.
After reaching orgasm both Nikka sobered. Nikka was horrified at what she had just seen and done. In the room before her stood David, his lower body was very horse like while he still remained mostly human in his upper body asides from the increased muscle mass and size. Nikka had a brief moment in which David stared in front of himself with a horrified expression on his face. His penis had lost its impressive size and was stored in David's newly gained sheath. The moment was quickly lost however, the wooden floor cracked as Nikka tried to back of back into the hallway to the door she came from. David turned his head to the unexpected sound and turned red when he saw Nikka on her ass on the ground of his hallway. Not knowing what to say David could only voice a soft embarrassed but desperate "please help, i don't know what is going on".
Nikka was not sure how to react to this plea. She looked ad David whose penis had already half emerged from its sheath and decided.