Remote in hand, you decide to go home for now; there was someone there you had in inkling to try the part swapping on. Right now, you knew your 23 year old sister, Lauren was home alone. She was considered very attractive by your friends and you could understand why; F cup breasts and curves in all the right places, not to mention she was over 6 ft tall. She was one of the best people to swap parts with.
Which is what you planned on doing; you wouldn't mind trying out her best traits for a while. And she certainly wouldn't mind since the device wouldn't make her aware of the swaps anyway. Arriving home, you learn that Lauren was in the backyard, sunbathing in a bikini. She appeared to have fallen asleep, so this was a good chance for you.
Aiming the remote at her, you the chest and feet option. Lauren's large breasts slip out of her bikini and land on the concrete patio, her feet fall off and do the same. You walk over and grab these parts, then detach your equivalents. "Pretty nifty." You say, running your hand on your featureless chest. This didn't last for long as you picked up Lauren's breasts; they jiggled a lot and you attached them to your chest.
"Oh my. " you moan, rubbing the smooth jiggling orbs and groping the nipples. Remembering about Lauren's feet, you attached them to the stumps on your legs. "Awesome." you say, wiggling your dainty, size 7 feet. Walking over to Lauren, you attach your nipples to her featureless chest and your feet to her legs. This was somewhat turning you on; but that made you think of something. "Isn't there one other part I almost forget to take?" you say, looking at Lauren's groin.