You're not done and a few changes won't hurt. (Cuminflation)

You tell Anne "Get on the bed." She obeys and sits there striking a sexy pose and eating your cum. You grab the pearl and start changing her before your own eyes. You make her ass immense, to accentuate her already big ass, but now its almost like she as a disorder or something extra going on. By the time you're content her ass covers half the bed, and you added an extra ability that when she gets horny and wants it to grow it will, and it'll nearly double in size if she wants to push the limits. You then give her tits, large, jiggly tits. You don't know where exactly you stopped but you were aiming for the size of ripe pumpkins, and just as heavy.

Now that she has those assets you decide to adjust a couple things about yourself. You make it so you can't die. No way out, you will never die unless you change the rules to go back, and you know you can crush the pearl later to make that a solid rule of the universe. You also give yourself the ability to change your crotch in every way at will. For the purpose of ease you make it so this applies to the whole crotch not just the penis.

You set the pearl down again, and while your changes remain an anomaly to the universe, Anne's changes set into historical record as a possibility, though a rarer one at that. You did in fact give her a disorder, though this disorder makes women so sexy people try to breed with them all the time. The reason it's so rare is because they typically prefer women or Futas over men, and so usually don't pass on the genes as much since Futas are still so rare.

Once the universe is caught up you climb in bed and lay down on your back "Mount up girl." Anne cracks a grin and obliges, and her ass begins to inflate indicating her arousal at this idea. "You're so much bigger than any man I've seen in porn." She says, having to stand just to line you up to her pussy. She rubs the tip of your monster cock along her wet pussy and starts pushing it inside. It's a struggle at first but then almost like a pop your dick begins moving in. The feeling of her tight pussy is amazing and her massive tits look amazing from your perspective. She's almost halfway down your cock and her tits are massively blocking out a large portion of your view when you look down. Though her tits are massive her ass still shows itself from behind her, and you can see that her ass must have reached it's full size with her arousal and covering the whole bed.

The agonizing slowness is too much so you say "This is too slow, come on down here." and you pull her down by her waist. With a loud slap of flesh on flesh she sits in your lap, dazed and in shock. Her tits spread around a large bulge of flesh that your cock is distending from her midriff. her eyes roll back and she starts rocking her hips, you can feel she's having an orgasm. "I love your cock! It's amazing, it's big! I want you're cum! Make me take your cum." Anne screams out while she picks up speed and fervor. As the waves of her orgasm calm down she gets into a crouched position and starts piston up and down on your cock. The sight of her breasts becomes too much and you have to grab them. They are soft and pliable, much like your own, they are also bigger than both your hands combined for each breast. While you fondle her breasts you pinch her nipples and she lets out a moan in response.

Anne is now pounding herself onto your cock so hard the bed is slamming into the wall. You can't see but you think she might be denting or even breaking the drywall. The rough fucking, the sounds of her moans and your bodies clashing, and the feeling of the bed hitting the wall, it's all getting to be a bit much. You think you'll be cumming soon and you definitely want to. You pull Anne's head down to kiss and while you do you let loose your orgasm. Wave after wave flows from you to her as buckets of cum is shot into her womb. You can feel her belly is already resting on you and it's only been ten seconds. You are slowly adjusting yourself, micromanaging how much cum per shot and how many shots this orgasm will have. You make your orgasm last another minute before choosing to be done.

As you let go Anne rolls off of you, which makes your dick flop out and spray the room in residual cum. As you look at her you see that her belly is big enough to immobilize her if it stays the size it is. She looks like a human sized balloon almost, but as she goes to sleep her ass returns to its resting size. You think you should go to sleep too, but there's some stuff you can do before that.