Yes, but not quickly enough.

“How do you feel? Full?” Kary asks after a long, restful silence.

“Believe it or not, I feel heavy, but not full,” you honestly respond. “It’s like I drank my body weight in cum, but I feel I could go for another round, even with how distended my belly is. I’m just concerned about the weight...I can barely move as it is.”

“I don’t mind the weight, since you are rubbing it all over my junk,” Kary giggles. “I’m still hard because of it! It has been a few minutes, why don’t you try now?”

You plant your feet firmly and pull yourself from your position draped over Kary’s penis. It takes effort, but you manage a little better than when you pulled yourself to your feet. You are still sort of squatting, but holding yourself upright.

“There you go! Those growth chems are working at a great pace! Hehe, the estrogen too!” Kary gestures to your widening hips and ass and budding breasts dripping milk.

“I guess it’s a package deal, hmm?”

“You knew it has a ton of estrogen in it too! Quite honestly you look great and it will keep the growth chems working in the right places and give you some great curves,” Kary concludes.

You put your hands on your hips, which are definitely wider. “Great curves, hmm? Wonder if I’ll develop a craving for my sister’s big dick too?”

“Whoa, bro! I didn’t plan on this happening! But I have to say, if you are cock-hungry for sister, you had that before today,” Kary says with concern.

“I did dive into it face-first, didn’t I?“ You say sheepishly.

“Literally took a lick through my pants,” Kary confirms.

You move back and forth, your belly now slick with milk spatters so it glides along Kary’s shaft. Your hands move to your butt and find it has doubled in size, unsurprisingly. You look at Kary as you rock back and forth and see her watching you enjoy your new size with a knowing smile.

“I’m close,” she says simply and cocks her head to gesture at her tip as she rubs her shaft. “Can’t wait to see how your belly feels against me after another sack of cum,” she breathes.

With very little effort now despite your minor reduction in belly girth, you slide your belly to her tip and squat and kiss your sister’s cockhead right as she squirts again. You swallow it all even without any warning of her impending climax.

“Got there just in time, huh? I was hoping to blast your face!” Kary giggles between pulses.

You take your mouth off of it. “I can let you do that,” you tell her as she unloads again. It hits you right in the nose and goes everywhere. Another hits you in the mouth as you open wide knowing most of it will rebound out all over your front and belly. “I’m going back in, sis!” Another surge hits your chin before you can line up and it flows down between your breasts in a stream of cum. You chug down the subsequent squirts.

“Yay, I got to facial my brother!” Kary declares as she delivers her payload.