She tries to match you...

Kako shoves your nipples deep into her throat and jacks them quickly with her hands. You don't have any problem producing enough milk to feed her desire. You don't mind when her desires fill you more with her cum either. Her ass sits upon you as you fill out underneath her. You grasp her balls and can feel them pulse strongly after you squeeze them. She stops drinking and releases your nipples.

"I'm so full," Kako tells you. "If you keep kneading my balls like that, I'll keep making cum for you, though." You feel her balls pumping out more cum again. You hesitate. "Oh, don't give me that look. I'm already sitting on you." You start kneading her balls more. "Yeah. You like that," she tells you as she churns out another load for you.

"I do," you tell her, a bit embarrassed already with your current size. You'd rather your balls work like hers. Big enough to be a kink, but not as big as they are now, for sure. You keep kneading her balls and hefting them trying to predict when they are going to be ready again. You think that a few minutes seems to be right as they pulse again and your feet leave the floor. Through all of this, your scrotum feels great. Even better when you and Kako are fully resting on it.

"Ugh, we will have a bed at this rate," she tells you as she feeds your growing sac again. "Just keep that up." You jiggle her balls a bit until you are rewarded again for your attentions.

"I don't think we need any more here," you tell her. She smirks.

"What, I thought we were gonna make you big enough to lay on." She relents though. "Maybe we went a bit overboard."