Time to take inventory of all this newly grown Liz!

One by one they measured her muscles, biceps 33”, thighs 39”, hips/butt 52”, waist 38”… she was so enormous. Josh stopped and commented on how big she was, seemingly acting like he was done. “Oh Josh, you forgot one!” She teased sticking out her chest, “or were you saving it for last?” Liz giggled. Josh walked up to her and asked her to hold one end of the tape to the front of her breasts, she took it between her fingers and pressed it to the center of her bust as Josh strung the rest around her. He got to the front and held his breath… “Well?” She smiled.

“94… 94 inches.” He said in awe.

“Hee hee hee, I think I’m far from worrying about being the smallest in class now!” Liz said. “Oh I forgot, I was saving the best for last! You ready Josh? Lets find out how much taller I am now!” She said wide eyed and excited. “I’ll mark my height on the wall and you measure it!” She giggled excited to see how she compares to the other marks on the wall. Walking over she smiled seeing Josh’s line only reach her bust, then bent down to see her last line coming up to her thigh. “Looks like I had quite the growth spurt since I last measured!” She said taking the pencil. As she made the mark she noticed how it was about 7 feet from high 15 foot the ceilings. She couldn’t imagine outgrowing the room, but felt warm thinking that she probably wants to. “Ok Josh! Lets see how tall I am.” Josh walked over, his penis straining his pants, and starting at the bottom, stretched the tape above his head. “Well?”

“8 foot… 3. Oh…” Josh trailed off mouthing ‘my god’ and then looked over to Liz, who had a huge open-mouth grin on.

“I’m huge! I must be breaking all kinds of records! Oh man, who knew last week that little 4 foot Elizebeth would become the biggest person in the house, or even maybe the country!” She squealed. “So big brother, you impressed with your little big sister?”

“I just can’t believe it Liz. You are such an amazon. I still can’t believe what is happening.” Josh was paralyzed with lust at learning her height. Watching his little sister out grow him was the biggest turn on he had ever experienced, and seeing her head rise higher and higher above him was like a wet dream come to life.

“I know you love it, looking up at me, and outgrowing you. Little Liz is now Large Liz! But I haven’t just been outgrowing you upwards have I? We still have one more thing to measure…” She smiled and looked down, Josh followed to see a rapidly expanding bulge in her pants as her penis was getting hard. “I would think most boys would be humiliated seeing a younger sibling hang lower than them,” Her penis was pressing into the bottom of the drawstring as it bowed up, exposing the shaft bulging above the waistline, “it would be even more humiliating for that younger sibling to be… their little sister,” she pulled on the drawstring undoing the bow and letting her cock stretch it out further as it lifted up the spandex, stretching it to its limit, “how about you Josh? Does it bother you that your younger sister’s penis makes yours look tiny?” The outline of her cock’s head and bottom shaft was pressed hard into the thin spandex, “lets see just how much bigger it is!” Just then it looked almost like Liz flexed her cock as it surged upward and burst from the top of the pants, allowing it to fall around her thighs. “Lets find out how big a real cock is.” She said and walked towards Josh, until it bumped into his stomach, witch caused him to jump back against the wall. She closed in and pinned him there, pre-cum wetting his shirt. “Better hurry before it grows again!” She laughed then backed up, and pointed her hips up, angling the cock above his face.

Trembling Josh bent down and picked up the measuring tape and stretched it out walking towards that long tall tower, pondering how one could ever scale a mountain. Slowly he inched forward, and lightly pressed the tape against her warm cock. Liz gasped and a tiny bit of cum squirted, making her swell slightly larger, along with her cock. Josh was shaking now and stretched the tape longer then read the number. He dropped it and backed up gasping, with a shocked and scared look on his face. “36½ inches. Your Penis is three feet long.” Liz smiled and her eyes widened. “And it is at least a foot thick… maybe more.” Josh estimated seeing it was close to twice as thick as his arm.

“So, am I bigger than you?” She giggled.

“Liz, jeesus, you are so much bigger than me that I could probably fuck your cock hole with mine!” He said shocked.

“Ohmigaw… really?” She started to tremble and more precum started to flow from the tip of her cock. The thought of her being so much bigger that her older brother’s cock could fit inside hers filled her with whole new unknown lust. “Lets find out!” she giddily said approaching her brother.