Eric sat up, giving Ryan a clear veiw of the mess left from their sexual exploits. Ryan's eyes widened at what he saw.
Where his normal human penis once was, a barbed lion's dick rested. It was slick and red and still semi-erect. At the base was a sheath covered in rough, tawny fur. His pubic hair was a dark brown, and looked more like fur than hair. His balls were covered in the light, dusty fur of a lion.
Eric's bent down, as if to restart the process, but Ryan quickly backed up. His pants fell to hus ankles as he turned to try and get up. Eric quickly took advamtage of Ryan's position and mounted him.
"Eric, stop, I don't want to be a lion!!" Ryan yelled. But it was to late. Ryan felt his barbed penis push its way into his ass. Eric began rappidly thrusting his hips, fucking Ryan as he changed into a lion.
Ryan felt as a tail grew from his tail-bone. It stretched, lenthening, ending with a tuft of fur. He felt his legs pop, becoming the hind legs of a lion as his feet became paws. Soft fur spread all over his lower body, locking his fate as a lion.
Ryan squirmed, the thick, heavy musk coming off of Eric drowning Ryan. He felt Eric's mane brushing on his back. He felt utterly dominated, completely covered by the weight of his former friend. It made him hard, but he still wanted out. The fur spread up his torso, turning his chest into a barrel-shape. His arms shifted, becoming paws. The fur reached his neck, pushing forth into a thick mane. Ryan sniffed, and realized he smelled just like Eric.
His nose flattened, pushing into a muzzle. Eric bit on Ryan's mane, claiming him as he came. Ryan finished his tramformation, coming in sync with Eric. He let out a leonine roar.
They both collapsed. Ryan's head swam with fear, realizing he was now an animal, and not just that, but the lover of his former friend. He felt an odd comfort in the larger lion's paws. Eric's mane much larger than his, he felt instinctually subordinate, and yet, safe. He smelled his new mate, and his fears subsided. He was safe.