I quickly grab her hand and pull her into the first room I found. "Look, I need your help. I don't think these are going to fit much longer." I say, gesturing towards the stretching shirt and pants.
"How is this even possible?" The girl asked in amazement and slight fear.
"I don't really know. I was sitting in class, thinking about changing the way someone looked and I found out that I have the ability to change the size of any person I see just by thinking about it." I replied
"Wait, so you can change the size of your body?" the girl asked, glancing down at her own body longingly.
"Yeah, and anyone else that I see." I reply, noting to myself that my growth finally stopped. My shirt was almost at the breaking point. My breasts had grown at least another two cup sizes and were painfully straining against my homemade bra.
"Is there any way you could....help me out?" She asked hesitantly
"Of course! What did you have in mind?" I felt myself get turned on slightly by the thought of growing her in front of me.
"Well, my boobs aren't really that small, but I've always loved big boobs and wished that mine were bigger." she said
"No problem." I immediately went to work. I concentrated on her boobs, and soon enough, they began to swell and grow.
"Oh!" She said, surprised. Just then I noticed we were in a bedroom. She fell down on the bed, moaning softly, clearly enjoying the sensation of her growth. Her shirt began to tighten as her breasts grew more and more. "How big were you thinking?" I asked, unsure of when to stop.
"Don't stop." She said "Please." Turned on, I grew her breasts faster. They quickly passed G cups and were approaching H when ripping sounds could be heard. "Oh my god! My shirt!" the girl said as she came to her senses. Her shirt had ripped completely in half. As she stood up, I saw that her bra was holding on by a thread, barely containing the massive boobs the girl now had. Feeling horny and mischievous, I concentrated again and grew her breasts to the point where he bra ripped as well. Startled, she turned around in an attempt to hide her now naked boobs. "Don't look!" She said, embarrassed by the fact that she was half naked. I was disappointed. All the growth had turned me on a lot and I was hoping to maybe get some action. I began to wonder if I was limited to just changing people's size. I concentrated as hard as I could, trying to make her horny. Seconds passed agonizingly, and just when I was about to give up, she let out a seductive moan. She turned around slowly, playing with her new huge breasts and toying with her nipples.
Oh my god it worked! I thought to myself, wondering what the true extent of my powers was. "What do you want me to do?" I asked excitedly.
"Grow me more." she said seductively as she laid down on the bed, continuing to play with her massive breasts. I was only too happy to oblige her. I concentrated and made her breasts grow even more. They grew even more quickly this time, and after a few minutes, they were massive M cups. As soon as I started growing her again, she moaned in pleasure and slid her hand underneath her panties, masturbating fiercely. When her breasts reached M cups, she screamed out in pleasure, her back arching as she had a huge orgasm. I couldn't take it any more, I easily ripped off my strained clothes and climbed on top of her in bed.
"Is it okay if I touch you?" I asked, still not sure if she was horny enough to goof around with another girl.
She smiled coyly and looked up, "do whatever you want to me" she said. I immediately began to kiss her as I played with her enormous breasts. I teased her nipples, making her squirm and moan. She reached around and began playing with my boobs as we made out, pulling gently on my nipples, making them grow erect under her touch. I kissed my way down her chest and began licking and sucking on her nipples, rewarded by moans of intense pleasure. Slowly, I slid my hand down to her clit and began rubbing it. I could feel how wet she was from her orgasm and from our own activities. I played with her breasts with one hand while I began to finger her with the other. I fingered her fast and hard, enjoying the feeling of her wet pussy on my fingers. She moaned over and over again. She reached with her hand and began to finger me. I was already dripping wet from the foreplay we had. Suddenly I had an idea. I began to grow both of us, height, butt, and breasts as we fingered each other.
"OH GOD! IT FEELS SO GOOD!" She said screaming, we were both moaning and our breasts were growing. We were both past any normal scale. It was almost ridiculous how big we were, but neither of us cared. We both loved being big and no size was too big for us. Suddenly, we both came in big orgasms, soaking each other's hands with our juices. I eagerly bent down and began licking her pussy and she did the same for me, gobbling up each other's cum. Finally, we began to calm down. I climbed off of her and laid down on the bed next to her.
"That was incredible. I've never done it with a girl before." I said, panting.
"Me neither. Oh my god! Look at how huge we are!" She said, sitting up. I glanced down and saw that my breasts were absolutely enormous. Each one was slightly bigger than a beach ball. I reached under myself and felt my ass. It was the same story. I had the perfect bubble butt, and so did the girl. Embarrassed, I said with a nervous laugh "My name is Amanda by the way. I guess we didn't really get introduced."
"My name's Ashley." Said the girl, playing with her breasts absentmindedly. "We should get together more often" she said with a wink.
"Definitely." I said. "What are we going to do for clothes?" I asked. "It's not like anything is going to fit us now."
As we wondered what to do next....