Nikki typed into the Chronivac that Jeff--er--Jennifer would become her slightly younger sister by less than a year. She had way smaller boobs than they are now, about her size. In fact, the new Jenny would become a slightly smaller, but sexier version of her big sister. Nikki decided to endow Jenny with somethings she didn't have, like a perfect 10 ass and cocksucker lips--and no gag reflex. She put in that Jennifer would be exclusively lesbian to Nikki and anyone else Nikki decided worth to be fucked by her tight, juicy holes. Jenny would also have increased mouth, ass, pussy, breast, and nipple sensitivity; the slighted brush of her nipples will make her incredibly wet. Jenny will also have a tendency to wear revealing clothes with short hems, deep scooped necklines, "peek-a-boo" demi bras and stiletto heels making her as tall as their father.
Nikki confirmed the changes and watched as Jenny completed the change. Her breasts shrunk, but stayed just as perky and jiggled the entire time. Her body got slightly larger from becoming older, and her blond pubic hair reformed into a tasteful landing strip, mirroring her older sister's triangle. Her sister kept the browned look from Jeff making them Hispanic, but as soon as the changes were done, Jennifer quickly set herself and her younger sister back to white girls.
Jenny swiftly grabbed her head and clenched her teeth, inhaling air as her memories rewired themselves to fit her new life. She could vaguely remember Jeff as her older brother they double-teamed and fucked when Mom and Dad were at work and he went off to college. (Nikki, wanting to share this with Jeff at some point, made him 22 and relocated his psyche and new physical form to Dartmouth College). She also remembered being age 14 and her sister practicing kissing her and leading to sisterly love that's going 4 years strong. She remembered a three-way with Nikki's friend Tomissa and Johnny from down the road. She remembered the cold winter night where she suckled her mommy's tities like a baby as they huddled together for warmth when the heater broke.
Jennifer ragdollized slightly then regained her composure.
"Um...Nikki?" she began, looking at her slightly-sweaty and nude form, "were we just fucking? 'Coz I don't remember any of it!"
Nikki laughted.
"No, my genetic fuck buddy", she said, walking over to a laundry hamper to hand her one of her (new?) bikinis. "We were outside tanning drunk and you passed out. I took the outfit off to cool you off."
Jenny rubbed her head.
"That explains the migraine..."
Jenny took the tiny blue g-string from her sister/lover and put it on her arousing frame.
"We're going to that bikini contest, right?"
Nikki nodded and grabbed the keys. Jennifer walked outside onto the porch.
"For glory!"
"And fifteen-thousand dollars cash!"