*New Standard Disclaimer*
This is a story based on expansion and growth and unrealistic body part sizes. The first two chapters of the 'Growing Anticipation' series were written by HugeErection and PeaceEnder. Their stories are on my favorites and I highly recommend reading those first. I hope you enjoy my expansion stories.
All characters are over 18.
*****
It was another night of restless sleep and crazy dreams. I slept in late and awoke with a giant morning wood. At least that has become consistent every day. I checked my phone, there was a text from Rachel sent about half an hour prior. "When you wake up come down to the basement, Tina is home and needs your help." It read. I stood there with my rock-hard three-foot cock and debated whether I should let it go down before I went downstairs.
I made my way downstairs to the basement, hard penis leading the way. In the basement living room tina and Rachel had already rearranged the furniture. "Good morning sleepy head!" Rachel said. She ran over to me and kissed me on the mouth. Tina was busy setting up some machine on a table in the middle of the room. After a few seconds she finally turned and looked at me.
"Hey bro... oh my god! Your way bigger than before!" She exclaimed. I had forgotten that she hasn't seen my latest growth spurt, she had taken off right after I took the last two experimental pills. I don't know why but I blushed a little at her comment.
"And your...perkier than before." I said back. Tina didn't blush though. She pumped her chest out, showing through her white tank top how her breasts were higher up and projecting more from her chest.
"Yes, I am, I got the same implants that mom has, except that since my boobs were already huge, they were able to place a higher capacity. Let's see who's the biggest when these are done growing." Tina said.
I was confused. If tina had an inferiority complex about the size of her chest this is the first that I have really noticed. "Tina, your boobs are already huge, why do you want to make them bigger?" I asked.
She thought about it for a second. "To be honest, I've always wanted bigger breasts. Mom has always pranced around gloating that she was stacked, and I'm not talking about since you two started using those growth pills either. She always had big boobs and flaunted them whenever she could. I don't think she did it on purpose, but I'll admit that I was jealous.
Tina took off her shirt and cupped both boobs. "Now I wasn't expecting them to get this big with the pills but ever since they started growing, I wanted more. I love the attention that I get, I love how every top I wear shows cleavage. I don't even mind that they are heavy, and I have to pump twice a day. I just love having huge boobs!" She said.
Listening to Tina's speech and her cupping her huge breasts got my penis even harder. I then noticed the machine she had on the table was her breast pump. Except it had been modified. On one side there were two surgical tubes coming out, on the other was one larger diameter hose with a rubber cup looking thing. "What is that?" I asked.
Tina and Rachel stood next to the contraption they had created. "This is how we are going to help Tina grow." Rachel said.
"I took a breast pump and modified it to pump directly into the two ports for my implants." Tina added.
"What's the other hose for?" I asked.
"That's for you silly!" Tina and Rachel answered in unison.
"If you don't mind, I would like you to help me grow bigger just like you helped mom. If you cum into that hose then it will pump it directly into my breasts, no need to use syringes over and over." She said.
"Isn't that dangerous? What if they grow to fast?" I asked. This plan of hers didn't seem to be well thought out.
"It will be fine, I have a shut off switch and I have been using that special lotion for a while, my skin is super stretchy. I really hope that I don't have to convince you to help me make my boobs bigger. I figured that would be more than happy to help since you filled mom's tits full of cum already." Tina said
My penis betrayed my concerns about this whole thing as it began to twitch involuntarily. It seems to have a mind of its own lately. "I knew you couldn't resist. Now sit in that chair and we can get started." Tina commanded. I sat in the chair opposite of hers. The table with the breast pump on the table between us.
Tina's whole plan seemed crazy, but I do admit that it is going to be awesome to watch her boobs grow larger. Tina sat down and Rachel handed her a giant-sized bra. It must have been moms because when she put it on her already head sized breasts didn't fill half of the cups.
"We are going to fill my tits up until they are the same size as mom's, then when she comes home, she can watch me grow way bigger than her. Twice as big! Maybe three times!" Tina exclaimed. Tina was honestly beginning to worry me. The way she was talking about was that she wanted beach ball sized boobs full of cum. My cum. My cock twitched again.
Rachel then slid an elastic glove with a power cord onto my hard cock, halfway down the shaft. "What is this for?" I asked.
"It's a muscle massager, we thought we could use it help jack you off." Rachel said as she slid the rubber cup over my cockhead. It was a little tight fitting, almost uncomfortable. "Hmm, this is the largest one we could find and it barely fit!" She said.
Rachel then went and inserted the two hoses into the ports under Tina's arms. I'm glad no one else was here to see this crazy set up. "Alright Tina, I already have the hoses to your boobs full of semen." Rachel said.
"Good, I don't want my tits full of air." Tina said. Rachel clamped the main hose coming out of the pump closed. "I'm ready, make me huge!" Tina said.
Rachel flipped the power switch to the pump. I grabbed the armrests tightly as the rubber cup on my cock began to pulsate and suck at the same time. It felt pretty good, my penis was so sensitive now that if they let the pump run I would cum in no time. The pulsating suction was as if someone was slowly jacking me off. My cock started having mini orgasms, the smaller amount of cum still filled the cup.
My cum quickly travelled down the hose and through the machine. This went on for several minutes as the hoses filled with more cum. I don't think I've ever been teased this much before. Rachel walked over and kissed me on the mouth. I watched as she flipped the power on for the massaging sleeve around my cock. I almost forgot how to breathe as the sleeve started vibrating my cock.
My pent-up orgasm was fast approaching. Rachel barely had time to unclamp the main hose before I let loose my biggest cum shot ever. Through my heavily drooped eyes I could see Tina's breasts start to enlarge.
"Holy shit!" Rachel yelled. My cock was now in a near continuous orgasm. Tina moaned and cupped her growing breasts as they filled with my cum. Her skin appeared to redden as it stretched to accommodate her implants' increasing volume.
Rachel switched off the massaging sleeve as Tina's chest filled the massive bra completely. I kept cumming for several seconds more, the pump whisked it away just as quickly and into Tina's boobs. "Shut the pump off, hurry!" Tina shouted as her tits began to overflow the bra cups.
Rachel quickly turned off the pump. My cock erupted with several more ropes of cum into the hoses, filling them up. When I was done my body was exhausted, my penis softened and fell to the side, the rubber cup sliding off and landing on the floor. A stream of cum began to flow out and formed a puddle next to my chair.
I looked over at Tina. Her breasts were straining against the confines of mom's bra. Her skin a light shade of red and new veins snaked across the surface. "Tina, are you ok?" I asked.