The drama was done and you're about to stand up.
"Papa." Minghao walked down the stairs. You turned your head to him. "I can't sleep. Can I sleep beside you on the sofa?" He said in Chinese
"Sure. Come here." You replied.
He came to you and sat beside you. You changed the channel to some Chinese cartoons for Minghao. Together, you watched until Minghao fell asleep. You turned off the TV and looked at him. He was snoring out loud. You we're about to pick him out when you see remember out the box of condoms. A part of you wants to try to change Minghao, but another part of you is saying that you can't since he's your son.
You decided to chang him. First, you positioned him nicely with his back leaning on the sofa's back supporter. You make him sit properly.You picked your bag and pulled out the box of condoms. You looked for a good condom and you see the same condom that made you grow old. You carefully and slowly removed his pajamas and underwear. You saw his un-cut boyhood which is getting hard. You picked it out and tore it. You pulled out the condom and placed it on his penis. It was really bigger that it so you decided to unroll it first beforw you put in on him. Just then his penis grew and matured, turning into a teen that is about 20 years old's circumcised cock. Then his balls dropped, making him moan in his childish voice. His balls grew to match his 9 inch hard dick.
Testosterone were produced and he started to grow bigger and taller. You removed his t-shirt because it might get ripped. As he was getting taller and wider, you noticed the short hairs growing around his dick. You looked at his face as it gets much mature. He's turning into a 13 year old and is getting much older.
His baby fat slowly gets trimmed and he became skinny. The hair around his dick got longer. He's now 15.
You saw him grow taller much faster. He seemed to have a growth spurt. His head fell back as his adam's apple push out his throat. He moaned with his new deep voice. He's now about 17.
Lastly, His muscles got bigger. His pecs inflates. His shoulders got broader. His biceps gone bigger. His abdominal muscles formed a six pack. His leg muscles and thigh muscles inflates too. Now he's an 18 years old teen with an athlethic body of a swimmer.
You we're contented to his change but you also want to try a change. You looked at the box of condoms again, searching for the condom that will make you younger. You then saw a smaller pack of condom with a label "Younger but stronger". You undid your belt and pushed your pants and underwear down. You tore the condom's packaging and put the condom on your cock. It's a bit smalled than your cock but it fits just right.
You moaned as you felt the familiar feeling. You felt yourself shinking. Your muscles deflates a little bit. You lose a bit of your height. As you were changing you started to unbutton your longsleeved polo and threw it on the floor. You saw your reflection on the back screen of the TV. You're now back as your younger Chinese self. You're back as the 17 year old Chang but a bit different. Your eyeglasses are still in need because your eyes didn't return your clearer vision. But your body wasn't lanky than before. You're muscular and your dick is just the same as your 30 year old self.
Reality changed for a bit as your daughter Jei disappeared out of existence since you aren't old enough to have a daughter anymore. Your living room changed into a small dormitory. The two of you are currently sitting on a bed in front of another bed. It was still night time and your are both still naked beside each other with condoms on your dicks.
You removed your and Minghao's condom and you put it under the pillow. Just then Minghao's eyes opened fast as the two of you felt arousal.
"Hng-gahhh" The two of you moaned as you both started stroking your cocks.
"Chang, I'm gonna- It's gonna blow." Minghao whispered in his new older voice.
"M-Mine too. U-Ugh" You moaned as the two of you came in unison.
"U-Ahhh..."
"I guess it's a tie then. We came at the same time" Minghao said.
Oh yeah. You we're having another competition of who will cum first.
"What the hell. This game was a bit... Immature" you thought to yourself as you examine each other's body.
You two are now roommates.