May was frozen by a pleasurable heat just abover her pussy. She felt like something was trying to push out of her groin, which was swelling slightly. The swelling caused her panties to finally rip, falling to the ground useless. May stood looking down at herself, she couldn't see what was going on past the edge of the skirt but she could feel something pushing out of her.
May let out a slight gasp as the head of a thick cock pushed its way into view from under the skirt hem, pushing what little remained of the fabric up and out of the way as it grew out from her body.
May reached down with one of her hands to stroke her new shaft and was rewarded with a rush of pleasure. She ran her finger along the back of her slick and growing member and let out a soft moan (more of a Moo) of pleasure. Her other hand reched below the cock, stroking herself along its underside until it ran up against the edge of her new sheath. She ran her fingers downwards, feeling a set of large testicles to go with the new cock, she could practically feel them bursting with seed they were so tight and full.
Her hand continued its exploration downwards and she smiled as she felt the familiar tingle of her pussy. She plunged her thick fingers into her hole, causing another wave of pleasure.
By this time her penis had stopped growing at an impressive foot and a half. It stood nearly straight out from her body and was a deep red. Thick veins covered its surface and May could almost see them pulse with her heartbeat. She could barely wrap her fingers around the thick shaft.
Suddenly May heard Jennifer giggle from the end of the hallway, "I told you there'd be a nice surprise. You see I kno-" Jennifer paused when she saw the look on May's bovine muzzle. She was smiling evilly, and glancing between Jennifer and her new cock. "How about we take this thing for a test run?" May rumbled...
Jennifer turned to run again, but May easily overtook her with her longer strides. Jennifer felt thick strong hands grab her by the shoulder and spin her around.
She was met by a waft of bovine musk rising from May's aroused member, which bobbed enticingly in front of Jennifer's face. She hadn't realized how much larger May was than her until just now, and she realized there was no way she could stop May from doing whatever she pleased...