"Toil and Trouble."

[Appearence]:
The Beastlands is a wild and chaotic place, filled with equally dangerous and primal creatures - to hunt there, and bring back one of these mighty beasts is considered prestigious amoungst certain planewalking guilds, and they send out grand hunting parties to brave the fierce wilds, and bring back these great trophies. . . They are however not the only creatures that lurk there.
Beastmen roam the lands, they come in all manner of sizes, and shapes. Each born from a hunter, or traveller,  that was lost in the vast landscape and warped by it's primal and wild nature into a strange hybrid of their humanoid form, and that of an animal. In the case of Elle, she was once an elven ranger, joining a Great Hunt to bring back one of the massive boars that rampage across the plane.
In battle with the powerful critter, she was separated from her party in a wild sectiion of tangled forrest wounded and alone in the dark, feral land. Unable to catch back up with the others and painfully lost, she was forced to nurse herself back to health using her skills as a hunter, and survivor, until she was able to find her way back out of the ancient woodlands back to the gateway to Sigil.
      That it seemed was not a fate she was ordained, as in managing to survive in the wildlands, she was touched by the energies of the chaotic plane. Slowly she began to feel a change within' herself. Primal, and wild her body began to change slowly at first - but the longer she remained there, battling in the wilds back to the gateway the faster she seemed to warp and alter.
Her once elven curves became more pronounced and thick, muscle strengthened and she became hardier. Her legs warped into powerful equine shapes capable of running the vast planes and steeps, and her feet twisted into hooves far less frail and weak than her dainty elven soles. Her skin was graced by a thin layer of soft furr to stave of the wind, and elements.  She found her legs grew a thicker layer of coarce fur, helping her charge through brambles and thorns with little discomfort. Finally she found she infact had little desire to return 'home' at all, and in that final moment her transformation was complete. Horns spouted from her skull curling around from her head like a ram's, her canines grew to points like wolf and her eyes became dull and red.

[The 'Other' Parts]:
Where once lay a set of female folds, instead now hangs a beastial, thick shaft of masculine flesh. It's size is somewhat large, like that of an orc, hanging in a limp state of six inches and around an inch and a half of girth. When aroused, the veins fill with her chaotic blood, pumping around the throbbing flesh to leave it standing errect at twelve inches, and just over two inches thick.