Shadow Pony possesses Tempest Shadow

This is how Shadow Pony possesses Tempest Shadow goes in

[A Shadow Pony uses his magic on Tempest and opens her mouth and enters her body. Tempest starts to groan as her body starts moving and twitching as the Shadow Pony enters her mouth and takes control of her body. The Shadow Pony travels through Tempest's throat and through her body and to her mind and Tempest opens her eyes and her eyes are now pure white, her coat turns, and her mane and tail turn