A Couple BIG Changes

Before today, no one would have said Gwen and Beth were identical twins. They looked alike, having similar girl next door faces and the same cute, firm B-cup breasts, but Gwen had always had blonde hair like our mom, while Beth was a light brunette, more like me and presumably our father. But since Gwen turned eighteen the differences were more pronounced. Gwen had gained a couple inches on her sister, and had the muscle definition of someone who had been working out for years; not steroid induced muscles, but more like a dedicated, competitive triathlete. And her hair now reached far down her back and was pooling on the couch.

And those difference were now going to be even more obvious. While Farah, Beth, and I had been admiring the changes in Gwen, my mom had been keeping an eye on the clock. It was now 4:15, and Beth would be officially turning eighteen any second now. Whereas Gwen's growth had caught us by surprise, none of us missed Beth's.

None of us knew what turning eighteen would produce for the twins. Given the wide range of possibilities, I had loaned them both one of my large shirts and a pair of basketball shorts. Gwen looked like she fit them a little better, but they were still definitely too big for her. Beth, however, was very quickly growing into my shirt. Or at least part of her was, something we all noticed when she frantically reached back to unsnap her bra.

As the rest of us watched with mouths agape, Beth's breasts grew cup by cup, leaving her former orange sized B-cups behind as she outpaced C-cups, then D-cups, before settling on a pair of massive melon sized DD-cup breasts. Despite their size, they looked to be firm, and were sitting high on her chest as they strained my shirt almost to the breaking point.

"Well... that's definitely Indian." Farah remarked.

"That would be your father," Mom explained, "He did say he had some family in New Delhi. At least you don't have to worry about bras anymore Beth. If I recall, your back and shoulder muscles just developed alongside your boobs, to help carry the load. How do they feel?"

"Oooww..." Beth groaned, before marveling, "Wow...this feels so good. They never were this sensitive before."

"That sounds right," I said, throwing my two cents in, "We know a couple Indians, they're big into tit play."

"I... need to get this shirt off. NOW!" Beth struggled to get the hem of the shirt over her massive tits.

"Are they still growing?" Gwen asked, not jealous but concerned for her sister.

"No, I just had to get it off..." Beth responded, before asking, "Actually, Mom... do you mind if I get out of these shorts too? They just don't feel comfortable..."

Beth seemed to be absorbed in rubbing her hands all over her breasts, sighing as she hefted their weight in her hands and moaning as she tweaked her nipples. The rest of us quickly caught the meaning of her statement.

"Brazil," we all said at once.

Beth raised a brow, "What?"

"Your father also said he spent some time in Rio," Mom said, "I'm guessing he's got at least some family there as well. You're basically a nudist now Beth."

"A nudist?" Beth gasped, beginning to panic at the implications, "I cannot be a nudist, at least not all the time. I have to go to school!"

"It's not that big of a deal Beth. I think we can use the breast thing to get a work-around. Imagine soft silk caressing your tits..." Farah whispered in her ear.

"And we can ask Jun for some tips on how to show as much as possible while not going too far," Gwen added while dragging some of her hair over her sister's tit, causing both sisters to start breathing more heavily.

"And we can all learn how to be expert body painters for you!" my mom added, "And hair stylists for Gwen!"

"Yeah!" came a chorus of agreement.

I stood up, and extended my hand to Farah, "Come on, let's go grab everyone a beer. I think we all need a drink."

When we came back a couple minutes later, my sisters and Mom were huddled in quiet conversation, staring at an open phone.

"Something wrong ladies?"

When no one knew where to start, I looked at my mom and nodded.

"John, we think there might be a third fetish going on, something that might be coming from my mom's dad."