Josh stumbles dizzily outside after Liz

Their back yard was really huge with 7 foot fences for privacy, though that only covered Liz up to her waist. As the yard extended further from the house about halfway it sharply inclined as the entire land rose in a line parallel to their house up about 10 feet until almost leveling off to a slightly less steep hill rising another 3 or 4 by the time it reached their back fence. A swingset rested at the top of the hill and medium sized above-ground pool closer to their house. It was a great place to play growing up, and its even more perfect for a newly grown giantess to play!

“Y-you don’t need to go outside for room *gulp* f-for more room to grow into do you??” Josh said backing up in a quickened pace enough to see her face as his giantess sister stood up fully nude for any who looked to see. Liz grinned down at him with bright eyes and giggled.

“Tee-hee, I don’t want to get too big to fit inside silly! I just don’t want to make a mess!” She looked over her titanic frame, then almost pondering looked back at Josh. “I’ve got to be 12 feet tall already Josh, and the amount I grow keeps increasing every time! I’m not so sure I’d want to risk it.” Josh closed his eyes and sighed with relief and laid back on the steep incline, being propped up 45 degrees towards his sister. Liz giggled “But Josh, as you know, it isn’t up to me if I grow or not, so if my older brother decided to grow me more I’d have to do what he says. He is in charge after all!” Josh’s eyes shot open, with his heart beating and a sudden painful pressure in his pants. Liz quickly turned around shyly giggling to hide her face, but twisted her head around enough to see his reaction. She knew now that no matter how big she got he wanted her bigger, but she still wanted to show him something. “Remember when I joked about being able to feed the town with my big breasts? Well I think I might be able to now!” She turned around with her arms around her enormous breasts, hugging them to herself causing them to bulge out from under her arms and once again eclipse her face, her hands were flat against her huge areole, which was twice their size, with her gigantic phallic nipples poking through between her fingers. Josh noticed her penis was semi-erect, but still curving towards the ground. “When I woke up they were spraying out like the outdoor hose just regular, which would have flooded the house if I didn’t get my old pants over these big fat nipples to slow them down! But I never saw what happened when they are actually milked… maybe I could fill a lake!” Josh was breathing heavy and had his mouth wide open. “But you can’t see or do anything from way down there… lets see, I know! Why don’t you give me a hug!”

Josh got up hesitantly thinking that she was going to hug him and squeezing him in her arms lift her up to her level, which might kill him! But Liz had something different in mind. She pointed her dick at him. “Hug there.” Liz said smiling, the huge penis hung before him just as tall as he was, semi erect, the head was as high as his waist.

“Oh no Liz! You’re big enough!” Josh said panicked.

“Don’t worry Josh, this is just a hug, now hug the middle with your arms, and hug that big part at the end with your legs. And hug tight!” Joshy slowly did as she said. “Gosh, you are so afraid of me growing bigger aren’t you? And how crazy would that be? Seeing your giant little sister growing even bigger?” Liz’s penis started to harden, lifting Josh into the air as Liz aroused herself in growth fantasy “Boy Josh, I’d grow more than ever before, I might even be as big as the house!” Josh was now horizontal, and was having trouble reaching around the entirety of her cock as it had gotten much thicker and longer, roughly 25% longer than her leg, and as round as a steel drum! “Oh hi Josh, did you grow too?” Josh looked up noticing he was high enough to see his sister’s face now from behind her breasts, and struggling to sit up he gripped the enormous cockhead with his hands and sat on the flat top part like a big spongy chair. His head was level to hers now sitting on her enormous 8 foot cock (almost 75% her own height in length!). Josh took a big gulp. “Hiya big bro! You like the ‘elevator’ ride?” She giggled causing her to shake a little which Josh responded to by wrapping his legs around the shaft for solid stability. “Ooh, if you were jealous of my penis when it was just longer than yours, I can’t imagine how it must feel for it to be bigger than your entire body!” He breasts jiggled with each giggle, and Josh was hypnotized. “Oh you are only interested in sister’s milk right now huh? Well, lets get busy!”