Bigger is better...

Sandra kept sneaking a hand over to me while she drove. Any time we got to a stop sign, I felt that soft hand of hers up my skirt or my top.
"You've got some very nice breasts," she said at the first light. "I wish mine could be nice like yours."
I giggled and bit my lip. I was starting to feel a strange burning between my legs and I needed her to make it better. I hadn't fully examined my new breasts yet, but Sandra sure was intent on it. I figured they were C cups at least, but poor Sandra was only barely a B cup.
"Oh, they're so soft and supple," she said at the next light. I wondered if anyone could see us. "I can't wait to get to play with them."
I was so horny I was squirming and giggling while she drove. After the longest car ride of my life, we got to Sandra's place. She went in first to make sure her parents were both still at work, then she pulled me inside and started kissing me so intensely I almost felt pain.
"I love your breasts," she said, moving her lips down to just inside the collar of my cheer top. I felt her hands come up underneath again. She was doing everything, taking control, and feeling me up. Neither of us noticed for a little while that her breasts were pushing into me, her erect nipples poking into my sensitive tits. It felt so amazing.
She led us up to her room where she threw off her shirt and struggled with her bra. "Damn cheap bra," she said. "Feels like it shrunk in the wash or something."
Soom she was on me again, her tongue doing amazing things to my mouth and lips. She helped me remove my cheer top, then she stopped to get a good look at my breasts.
"They're so plump and firm..." she started kissing them through the bra. It felt electric. "I just wish they could be bigger. I LOVE big tits. They're such a turn-on for me!"
We worked our way over to her bed where we fell into a frenzy of kissing, caressing, and touching. Soon enough, her fingers were stroking me, and I was stroking her. I felt her back arch, and her legs shake as she came. She grabbed me, and rocked me back and forth with her. Once she was done, she lowered herself to the end of the bed and I felt her kissing my wet womanhood. Kissing became tongueing, and everything became white with ecstacy.
I woke up feeling amazing, but strangely heavy. I felt almost weak when I tried to get up. Then I looked down at two huge breasts, bigger than any real breasts I had ever seen. I gasped, and rolled over to wake up Sandra. She slowly opened her eyes, which almost bulged out of their sockets when they saw the breasts.
"Oh my God, Jonnie... what..." She rose out from the sheets, and then we both saw the massive breasts hanging from her chest. They were both equal in size, and after getting some measuring tape, Sandra estimated they were about a G cup.
"This is impossible... I mean it's awesome, but impossible," she said. She carefully jiggled her new breasts, then bit her lips. "They're so sensitive, too!"