Mika glanced over to the unicorn, and saw that the end of its horn was glowing with a pure, white light. He couldn't take his eyes off it, and somehow he felt it was having the same attraction to Luka. He felt the light pulling him from his standing position, as his hands hit the floor he couldn't feel his fingers anymore. His body itched as new hair was coming from it. He felt something happening inside him as well. The unicorn now seemed to exude both an intense attraction and an overwhelming maleness that he felt his own body adjusting to, not to match but to complement.
His face extended into a muzzle and a ripple of mane hair grew on his neck. But the most overwhelming sensations were coming from opposite ends of his body. His huge penis was reshaping itself, pulling back into his body--despite the fun he had with it, he knew he wouldn't miss it. He felt a new opening back there. At the same time, there was an excruciating yet somehow joyous pain in his head. The pain went away in a few moments, as he felt a new horn. Finally able to look away from the unicorn that had formerly been an elf, he turned to find that Luka had disappeared, replaced by a beautiful, high-spirited, graceful unicorn mare.
At that moment Mika realized that she was also a unicorn mare. Joy surged through every muscle of her body.