You smiled as you typed in what your girlfriend wanted, ready to see how much sexier she would be. As you pressed the enter button, her stomach began to grow. Charcoal grey scales spreaded across her body while yellow scales coated her belly. A long slender tail appeared above her rump, it's slender shape became more and more fat to match her new body. Her face grew longer, forming a crocodile jaw. Her mouth filled up with razor sharp teeth and her eyes were now yellow. Her body was done transforming but not done growing. She swelled up with fat as she started to get taller. When she was done, she was 20 feet tall and weighed 2 tons. Her ass was the size of a one story house and her breasts were as big as a semi. Her legs were engulfed in fat and you were surprised she could even stand. Her belly looms over you, you can see it covers her knees. She then let's out a giant fart, making her sigh in bliss and relief.
She starts to growl as she backs up and looks down at you, her eyes have the glance of a predator ready to devour you. At first you feel scared but then she smiles at you with the same smile you loved her for. You knew then she was still the same. She picks you up with her meaty clawed hands and hugs you, burying you into her abyss of fat. As she takes you out of her gargantuan stomach she asks if you like it. You reply that you love it and start to cuddle her face. For a reptile, she was surprisingly soft, mostly thanks to her new weight.
You then ask her what she wants to do next.
She replys.....