Arthur was beside himself. Not only did he change his sister from a flat, buttless annoyance to a busty, curvy sex bomb obsessed with him, but he wasn't finished! Not by a long shot. He smiled, now that she didn't want anyone but him he decided she should be even sexier.
“Zoey's Breasts are much much larger than they are now”
He watched as Zoey's D cup wonders began to inflate on her chest. Like Fleshy water balloons slowly filling with water he watched as they climbed the alphabet. She would absent mindedly adjust her bra as she grew past E cups into F's, unaware of the expansion going on. Her top started becoming more revealing, as she needed to air out her fleshy orbs so they didn't get too sweaty under her top. G cups soon became H's as they finally slowed their growth.
He smiled, and then he realized she was still shorter than he was. He had a giantess fetish but he didn't want his sister to be one just yet. However he did want her taller than him.
“My sister Zoey is... 6 feet, 7 inches tall! Alot of it goes to her legs. Ontop of loving to sit on my lap, she also loves to have me sit on hers, making sure to let me rest my head on her breasts”
Zoey let out a moan for a second before returning to watching her show. Arthur watched in awe and arousal as she started growing. She inched up, going from her original 4'11 to 5 feet in a matter of seconds...growing inch by inch. She then moved her legs ontop of the coffee table as they started to lengthen. Memories started to flood Arthur's mind of him and Zoey growing up. He was taller than her when he was 8 but that soon changed when she hit her 5th birthday and started to grow. Since that day she has always been a few inches taller than him and the gap just kept getting wider as they grew up. When he was 12 he was 5 feet tall, while 8 year old Zoey was 5'3. At age 9 she grew to 5'5, 6'0 at age 10, 6'3 at age 11, and finally, as he looked back to present day, at his 12 year old sister, she has grown to a massive 6'7. She was easily the tallest in the family, only your dad at 6'4 came close.
He gulped, looking at his sister who is now a sexy amazon... She stretched her long long legs across the table. Memories of her often pulling him into her lap and letting his head rest against her ample bosom entered his mind. He wanted more...but he wanted her to want him even more.
“Zoey's incest fetish has gotten more intense lately. She is not a virgin, as she has snuck into my room, and had sex with me while I slept...she has done this multiple times.”
Zoey softly moaned to herself, memories of sneaking into Arthur's room, and slowly lowering herself onto his cock and fucking him while he slept. She would always be careful not to move too much or moan too loudly, she didn't want to wake him and be exposed. She desperately wanted to tell him, let him know the truth, but she was afraid he would reject her, or tell their parents about her secret fetish.
He was so hard...he couldn't help himself as he spoke into the Dictaphone
“Zoey's breasts are even bigger!”
He grabbed his cock, beginning to stroke it as he watched his sister shift and stir a bit on the couch. Her massive H cup breasts beginning to rise and swell like doughy pillows. He moaned to himself as new memories of his lil sis entered his mind. Early puberty they called it. At 6 years old little Zoey had little bumps under her chest and needed an A cup bra by 7 years old. On her 8th birthday, she graduated to a C cup, her mother shocked by her tall young daughter's development. He groaned, remember playing with his 9 year old sister, her DD cups bouncing under her top. At 10 she needed a G cup, Vanessa gave young Arthur hell at the fact a 10 year old had outgrown her. At 11 she was stretching her J cup bras to the point where one day during gym class, it snapped and broke. Now, returning to present day, Arthur came hard, looking at his sister's massive K cup rack. They finally began to slow their growth, resting comfortably at a enormous L cup.
He gasped, looking at his giant busty sister. He needed to enjoy her touch...her body but he had messed with her desires enough. He wanted her to still retain some of her free will... so he devised a plan. He spoke into the Dictaphone.
“Zoey will come into my room tonight and have sex like she normally does. However tonight, I shall wake up in the middle of it, to see my naked sister ontop of me.”
Arthur then went upstairs, and allowed himself to be seen by Zoey. He then climbed into his bed and fell asleep. A few hours later he opens his eyes, seeing two massive tits bouncing naked above him. His cock was wrapped in what felt like a hot, tight wet velvet glove. Zoey's head was thrown back, moaning, bouncing on her brother's forbidden cock. Arthur felt amazing, and let out a moan, which Zoey looked down and gasped, seeing him awake.
“Arthur! I.... I can explain”
“D...don't stop....this feels...amazing!”
She smiled, he didn't reject her and she continued to move herself up and down his rod,. His hands found their way to her massive breasts, rubbing over the soft masses. They felt like warm, flesh filled balloons in his hand, squeezing them and watching them regain their original shape.
“This is what boobs feel like...amazing...” He thought, moaning as Zoey continued to move herself up and down. It didn't take long for him to cum, and he came harder than he ever did in his entire life. After a bit of silence they began to talk. Zoey admitted to her fetish of being attracted to her older brother, how she would often sneak into your room, and either suck on your cock or have sex with you.
“We cant keep doing this...”
She looked like her heart was about to break
“We cant keep having sex without a condom or birth control....its too risky. You're only 12 Zoey, even if your body is...more than most adults. I don't want my sister getting pregnant before either of us are ready to be a parent”
Her face lit up and she leaped into your arms. Her being so much bigger, she nearly knocked you over. You smile, already thinking of more changes for the future, but for now, you proceed to make love to Zoey throughout the night.
Mon Oct 23 00:00:00 2017