[DMs are open] cumflating a huge girl
The idea is straighforward. One of us plays as girl. She's the larger partner. I mean she must be huge. At least realistically tall but mini-giantess or even giantess is also fine. She is also massive, too. Chubby at least while BBW or SSBBW prefereable. I mean full bundle: plump cheeks, flabby arms, back rolls, soft belly, giant breasts, thunder thights and exaggerated hourglass build with hips so wide and ass so big it makes fitting the doors impossible task. She is super soft and voluptous enough to sink average human in her curves. Despite her size, she remains mobile, strong and flexible.
There should be different interactions. The first one is feeding. The girl is constantly hungry and can casually eat her weight in snacks. No limits in terms of her capacity, obviously. Once the meal is over, every calory is digested and transformed into her curves. Or height. Or both.
The second activity is sex. Here comes the requirement for her partner. She can regulate size of her partner's cock and adjust the volume of cum produced. And she wants it to produce a lot of cum. Cum baths, cum diet, cumflation, you name it. And when she's horny, she can easily fit entire oceans in her womb.
The final activity is pregnancy. The girl is hyper fertile. One tiny drop of seed can knock her with entire kindergarden. And her womb works hard to carry kids really fast