Trevor obviously had downloaded the chronivac onto his phone, and had texted his Diapos friend about maybe having a date on dry land. They met on the pier where Tevor was sitting down on the shore next to Finnia some dolphin fish hybrid that only looked vaguely human and only had fin/flipper things. She was still intelligent enough to talk and ask things like "So what did you get suckered to buying this time?"
Trevor said "I didn't buy it... it just showed up... I tested it a little and it seems to work. In theory if it worked would you even want to try it?"
She probably would've shrugged if she had shoulders and said "I guess? May be interesting to try to walk with legs and breath air properly."
Thus Trevor went and activated the chronivac and replaced Finnia's species with Human. Finnia herself started to grunt a bit as she started to feel funny as her flippers turned into non-scaled arms with fingers and everything. She took a deep breath in as she gained lungs as her gills disappeared, Legs formed, scales went away, her reproductive organs went through a massive overhaul as she went from egg-laying to keeping a baby in her body for 9 months, Her breasts came in as the more mammalian features crept in, and her facial features shifted as she gained a proper nose, and some red hair fell over her face as she gained well hair. Finnia looked over herself and started covering her breasts as she started to get a little red in the face. "It.... That thing worked! This feels so weird" she starts to hug herself a little tired "and why are we naked?"
Trevor asked "Why aren't we?"
"Well... we're... I know we haven't worn clothing together before, but it just feels... wrong for some reason!"
"Little thing we humans have that we call prudence or shame or something... at least towards one another, especially of opposite genders."
"I feel too squishy! The heck are with these mammaries?!?"
Trevor was starting to get a bit annoyed at Finnia's complaints, but at the same time... this was the first time his stiffy really got this stiff in awhile... Which Finnia started complaining about as well. Trevor decided to stop her complaints by.