"If I am going to make you into a full lioness, I need to be a full lion again." Leo's body rippled and expanded suddenly, and he dropped forward. Golden fur spread over his skin, and his face pushed out into a heavy muzzle that was quickly framed with a brown angle o thick hair. Ryan gasped as he saw the size of the beast, both excited and a little scared. The lion rumbled deep in its chest and then suddenly leaped forward and pounced on Ryan, the massive paws slamming his shoulders back against the mattress. Ryan cried out, but his scream was muffled my the sudden insertion of s slobbery, rough tongue into his mouth. After a few moments, Ryan realized that the lion's claws were retracted and that the powerful forelegs and hind legs were wrapping around him, pulling him into an embrace. The lion cock, even larger in full animal form, rasped against his own engorged penis. It was both painful and pleasurable, creating confusing and new sensations. Ryan swallowed the heavy lion spit and used his lips to pull at Leo's tongue, having to be careful not to gag as the huge animal drooled heavily. Accepting the tongue was getting easier, and Ryan was dimly aware of his own face pushing out, his tongue swelling and finding the taste of the lion's saliva familiar. Pressure built inside, and he felt an instinctive need to urinate. However, when he released the flow, it came from a place a lot further back than his penis. The lion released him and slid back to sniff at the urine, the gave a thundering roar. Freed, Ryan looked down at his chest and crotch and saw that his body was thicker and starting to grow fur. More importantly, two rows of teats were forming on his belly, and his crotch was now flat and featureless. Ryan rolled over to his stomach and pushed up, feeling a slick heat in his rump. The lion nosed him and a thrill of pleasure and need rolled up through Ryan's body. Desire exploded in his mind, and he was only dimly aware of his arms and hands thickening into forelegs and paws. Then even that awareness was lost as the lion pounced again, this time covering him above, the hard prod of the barbed shaft jabbing once, twice, then driving deep into what had to be Ryan's cunt. Pleasure and pain, instinct, need, desire, fulfillment and pure animal thought filled Ryan's mind, driving out thought, memory, worry, fear. The lion continued to thrust hard, brutally assaulting and shattering the remains of Ryan's humanity. At the same time, Ryan's room shifted and faded around them, the bed collapsing into dirt and sand, bookcases and walls becoming waving grass of an African savannah. Both animal roared as the lion jetted his seed into his lioness, sealing the transformation. The lioness that had been Ryan knew this land, this place, this lion, knew she had been mated and impregnated. Vague memories of some other life on two legs remained, but they were pushed aside as the male slid out of her, and they licked each other clean in the contented and much-practiced afterglow of mating. Leo relaxed, his muzzle twisting into a grin as he watched his new lioness rest beside him. What has been human was now beast - Ryan the man no longer existed, and even if any trace of memory remained in the lioness's head, the next mating would remove it.