Mia was beaming with pride as she watched her handiwork twitch with life, and you felt semi-proud by proxy for being part of such an odd experiment.
“Come on! Take a look!” She exclaimed, grabbing your forearm and helping you shuffle with your pants around your ankles to the mirror. There was no denying that it was attached - your crowded crotch felt throbbing with vigor as the new pair of balls dangled low over your old ones and began to throb in unison. The little shaft below your engorged monster was also coming to life, as it’s little foreskin peeled back and the dicklet head felt air for the first time in who knows how long.
Mia dragged you to a stop in front of the full body mirror, allowing you to fully grasp the addition as she leans against your side staring into the reflection.
Between your paler cock and balls was a new set. Yellowish brown in skin tone. Thin trimming of dark black hair fuzz around the sack, filled with two bulging ovals producing the very thing Mia craved. You swear you could feel them already working and shifting as if they had always been yours, as your residual hormones were boosted by their presence. You lifted them up to find your old balls still there, happy and humble in their continued production of sperm.
Then you felt a dribble of thick juice from your tip, and realized the other thing.
You grasped your oldest friend and pinned it up to your belly button once more to look at your newest one. Your cock was still hard, but the Asian cock resting snugly below it was passionately raging with pent up need. You teased back it’s soft foreskin wrinkles and exposed it’s head to the mirror.
“It’s just so small and cute on you, isn’t it?” Mia cooed, her hand wandering from your arm but still not brave enough to touch.
“Cute?! Nobody wants to hear that!” you mocked laughingly as you fondled it some more.
It grew.
It was a small surge but a surge nonetheless. A feeling of need and warm sensitivity spread from your hips into the Asian dicklet, and you almost felt like the erection was … stronger?
“Mia, did you see that?” You asked, a cold realization spreading in your mind.
“I’m not sure … did it just?”
She moved her face closer to examine it. In the mirror, you couldn’t help but notice a few veins on your little buddy lose definition and no longer be as close to your belly button as you remember.
Mia reached out with two fingers and gently wrapped them completely around your Asian dicklet in a timid masturbation act, working the foreskin over the head a few times.
It grew again. Your knees buckled slightly as you felt a surge redirecting lower in your crotch.
“Uh … Mia…”
You focused again on the mirror, watching as the little dick seemed to writhe and throb as it bulged out beyond Mia’s two fingers wrapped around. Mia, in shock, pulled back.
“I’m sorry! I’m sorry! It was so small before it was barely bigger than my two fingers, but now it’s bigger than that! All I did was touch it a little!”
You felt a draining sinking feeling in your old cock, as it’s head shrunk a little smaller and it’s shaft lost a little rigidity. It seemed even further from your belly button now.
Mia reaches back down, cupping the Asian balls and extending her fingers gently around the small yellow cock. One, two… three.
She looked up at your eyes, curious and mortified.
“Well the balls haven’t changed, but the little one has grown bigger!” Mia stood up, her breasts swinging with momentum in fearful excitement.
“Yeah but … mine” you said weakly, watching in disbelief as your old cock, though still larger of the two, seemed deflated compared to just moments ago.
Mia grabbed you by the shoulders with a surge of authority.
“It’s not over yet. We can make this work!”
Mia eyes up the double dongs on your crotch as she formulates a plan …