You made a dash for the chamber. You were a bit faster than either scientist imagined and it took them a second to start to react. The defusion pod was a little snug, but you were able to press the defuse button and then squeeze your arm in before the pod closed.
Jeff wondered out loud "Should we turn it off?"
Dave asked "Are you Crazy?!? That would leave a pile of flesh and blood in all three pods. It wasn't ready for this sort of test, but it's best to let the machine do it's thing."
Jeff asked "What about the clothes?"
Dave hypothesized "The orange peels didn't fuse into the fruit, so it's possible that Erin and Philip will be wearing a thinner version of the clothes."
Jeff said "Well I hope you're right. I'll go get my gear." Meanwhile Dave watched the machine hoping that his daughter would be alright and mostly intact, and hoped that at the very least Philip's body was mostly in tact so Harry could get back in his. Then the rumbling ended and both pods opened up as two intact bodies came out in thin and extremely baggy white clothing. "Erin, Philip!" and went towards the girl."
As I Philip opened my eyes I saw Jeff's face and asked "What happened?"
Jeff said "Erin you and Philip didn't swap bodies, but merged a-"
"Wait... I'm Philip though... I think?" I couldn't quit remember much being the fusion, or at least right away, but I did have most of Philip's memories... Although some seemed to be gone and I could remember moments of Erin's life.
meanwhile at the other pod Erin was stirring and with a more masculine groan said "The heck, I'm a dude! Did the body swap work!?! Huh so those are some guy thoughts."
Jeff said "Don't worry you two, We can fix some of these small things. maybe a body swap or two and some body ma-"
I said "If it's alright I actually feel really tired, and would like to rest before we do any more of this. Transformation junk."
Erin realizing a headache said "I gotta agree, This just is so off. I'd like at least a good night's sleep first."
Dave came by and said "I'd like to do a quick health check up to make sure you two are stable. The thing you two merged into used some extremely experimental equipment and i'd just like to be sure you two don't sleep forever. And we'll get them out of this lab for the day at least." With the last sentence being pointed more towards Jeff. Then the doctor gave you two some examinations and the two of us seemed to be about the same size despite being different genders. Both of our DNA's were both entirely XX or XY, and seemed to be healthy or at least Dave's mad medical science tools said so. Probably both of our bodies being siblings originally helped make the transformations more smooth. Course the thing clothes designed for someone twice the two of our sizes we needed more clothes and thankfully Erin let me borrow some of her clothes, and Harry let Erin borrow some of his clothes.
Erin first put out some of her clothes for me, and I had enough of her memories to put them on relatively easily. Then harry helped Erin pick out some things. As Erin's male body was smaller than usual the clothes she wore were a bit baggy on her, and the clothes I wore... Well they were quite snug on my hips, and her Bra was for sure a size or two too small. I'm not even sure her shirt was supposed to show off as much cleavage as it currently was. While changing I did try cupping and seeing if I would be attracted to my own body and didn't. I remembered jerking off to porn, but it was probably the fact that my body was that of a straight girl and not a straight guy. We all had a bit of an awkward dinner and then went to sleep.