She looks to you.

Kako looks over to you as if asking permission. You nod, there is no way you are taking that monster without a lot of practice, if ever. You watch as Kako assists Mrs. Barstone and her huge pregnant belly over to the couch, while Mrs. Barstone helps carry Kako's monster dick. She lays back, and tells Kako to use the milk for lube. Kako looks around, "What milk? We had water." Mrs. Barstone smiles, and reaches up and kneads her watermelons until milk begins to dribble out.
"Slap that big cock up here, and let me squirt some of this on you. I'm sure I have enough milk in these things to lube up a cock of that size!" Kako complies, and Mrs. Barstone begins to shoot milk in large streams onto the gigantic cock. Once she has enough, she drops her nipples and braces herself, ready for the fuck to come. Kako doesn't disappoint, and Mrs. Barstone's huge snatch is filled with an equally huge cock. She moans in satisfaction, orgasming immediately. Kako begins to fuck her proper, with Mrs. Barstone in the throes of ectasy the entire time. Kako quickly has her own orgasm, and clamps her lips over one of Mrs. Barstone's milk gysers, sucking with gusto as her cock pumps in the willing cunt. She begins to teeter, and looks weak in the kness. You reach over and grab her from behind and hold her up as she continues to pump cum into the lovely pregnant MILF. After she has cummed for at least a minute, you wonder when it is going to stop. Then you look down and realize her balls are proportionally sized to her cock, the size of cantelopes, and she might cum for 5 minutes or more. You hear Mrs. Barstone groan, "Ugh, so full..."
As you hold up your woman, you watch Mrs. Barstone. You could SWEAR her belly is expanding slowly. You realize after another minute that it is definitely expanding. Kako keeps on dumping her load, and Mrs. Barstone's nipples keep squiring milk through her constant orgasm. By the time Kako finally regains control, the sexy MILF's belly looks at least half again as big, filled with your lovely woman's semen. Mrs. Barstone finally comes down soon after the cum stops flowing. She looked at her belly, and felt the increased size and moaned all over again, clamping down on the invader in her cunt. She roared, "AGAIN!"