Tristan had to give it to Sarah... She knew how to be a near perpetual motion device. However during play Tristan noticed that reality around them seemed to warp... Not in the way that made Tristan into Trish, but as she was talking about going to space the swing set seemed more like a space ship. Not even the plane thing she was imagining as a space ship but more like something Nasa might make. Were their imagination's linked? The worst part for Trish however was that her body was significantly smaller than Sarah being a year or two so early on in life, and Sarah ended up dragging Trish around.
"Kids, how about coming in for some Lemonade and cookies!" Sarah's mother called out. Sarah herself was running out of breath, but hearing she'd be getting sugar Sarah ran like her life depended on it. Trish on the other hand slowly waddled her way to the house completely exhausted. Her mother caught Sarah at the door and said "Go easy on her next time, ok?"
Sarah breathing hard said "Ok!" in such a way that her mother wasn't sure if she really understood. To make things easier the mother moved the coffee table, and laid down a picnic blanket as she lay down the lemonade and cookies. She figured that two exhausted and messy kids would make a mess, and it'd be easier to clean a blanket than the rug.
Tristan had to admit that ice cold lemonade and warm fresh baked cookies after playing in the hot sun was a sort of bliss. However Tristan lamented that he was now stuck in the body of a little girl, and the next girl he'd be laying together with was another little girl. Although an older little girl technically. Despite the body being young and Innocent Tritan's mind was starting to imagine something a little more naughty. Possibly some time a decade or so in the future. Them having a sleepover while their parents were both away... Sarah with a well developed 16 year old body, Trish with an underdeveloped 14 year old body. The two really good friends who were experimenting a little. Sarah taking the initiative massaging Trish's sensitive nipples and a light fingering to get things moist. Trish got out of her imaginative state to realize now an older Sarah was getting Trish nice and wet.
Sarah whispered into Trish's ear "Now then how about we pretend I'm the guy of your dreams." as she got out a strap on and as Sarah started to penetrate Trish the artificial cool dildo started to feel more and more warm. Sarah's large body feeling even larger. The two embraced breathing hard and as Trish started moaning as she was Cumming Sarah decided it was time for her release. The two undocked.
Trish now feeling very female asked "Was it good?"
Sarah with a deeper voice said "Very good, It wasn't too rough right?"
"It hurt a little at first but... the rubber worked right?"
"doesn't seem to have any leaks, but we also got a morning after pill right?" Trish nodded and looked to Sarah who now was a rather fit looking guy. The energetic girl being an energetic boy, and got really interested in sports which left him with a nice body. The Tristan in Trish was blushing a bit considering the first time he ever had sex was with a man.