You aren't giving up now!

You resolve to endure the pain as long as possible. The humps of her butt are only about as big as her boobs; the only difference is that she shoved her watermelon-sized breasts in one at a time whereas now you need to do both big buttocks along with her wide waistline all at once. Despite the huge amount of effort involved, you are making progress. You can feel the base of Kako's cock catch as she keeps shimmying to work her ass into yours. Then you tense up unexpectedly. You orgasm and cum shoots out of your cock without you even touching it! Using previous experience, Kako pushes quickly and you feel two buttocks **** themselves into you and you yell loudly as your orgasm continues. Once you feel the widest part of her ass **** you to amazing and painful dimensions, she easily pulls her legs and feet up into you. All that is left are her cock and balls hanging as you stop spreading your crack. You take a careful step forward. Your big ass and hips and thighs make carrying Kako around inside of you easier than you might have thought with such a heavy woman. After a few steps you get the hang of it and go to your mirror. Kako's cock is squirting cum often and her balls bounce off of the backs of your thighs as you walk. As expected, your midsection looks like it has a fully grown and fully curvy woman inside of it. Your breasts are lactating heavily as they swell noticably as you watch. They start to ache and you rub them as much as possible considering their size. Even considering the stream of milk leaking from your nipples, they keep swelling as your glands kick into whatever makes monster tits grow like this. As they swell, the skin becomes more taut. You also notice the base of your breasts expand to cover more of your chest. The overall effect is that despite their rapid growth, your previously floppy funbags start to raise from their low-hanging position to sit higher on your frame. They also become firmer, you notice. Despite being parted by your belly on the bottoms, your boobs still come together in the middle to display some wicked cleavage. Your aereola have become much more puffy and your nipples doubled in length and thickness so that you can't even wrap your hands around them anymore. When you finally feel relief from the ache, your tits rest on the top of your belly but don't sag off to either side. Instead they jut out proudly over the top and stick out just as far to the sides and out to the tip of your belly. You rub your belly and find it very sensitive. Some parts are soft and others are firmer. You guess Kako's tits are the soft parts. You turn to look at her penis and balls hanging from your ass. When it isn't shooting a jet of cum, it is leaking precum in preparation. You pull your demented tail up your crack and over your shoulder. It gets you in the face with a wad of cum as you open your mouth to lick it. You get an urge to suck cum right as the first drop hits your tongue. You hold the head to your mouth with one hand as you jiggle your rack for yourself in the mirror. Then you go from jiggling to turning yourself side-to-side so your tits sway to either side. Then you turn and hop to make your ass bounce. You use your free hand to slap the bottom of your left ass cheek to make it jump wildly. When the next burst of cum hits your tongue, you cum too. Your cum flies all over yourself as you keep jumping erotically for your own benefit. Gosh, you are so turned on! You wish you had a cock to ride as you watched yourself in the mirror; one big enough to make you feel like a total anal whore. The only cock you know of which is that large is currently hanging out of your butt.