"Actually..." Alan started, clearly thinking about something. "All of the friends Lucy invited are girls, right?" He asked, and upon the nod of confirmation from Jeff, he continued. "Well, you're Lucy's brother, so you don't have a problem. But maybe turn me into a girl as well? That way, they won't question me."
Jeff shrugged. "I mean, I don't see a problem with that logic." Turning back to the Chronivac, with Alan's profile still open, he asked, "Any name in particular you want to pick?"
"Well, my mom did tell me that if I was a girl, she'd have called me Elaine. So I may as well go with that." The boy answered, and Jeff got to work, setting that name when he made the transformation turn Alan into a girl. With that decided, Jeff gave one last look over the changes, then clicked on the confirm button, initializing the transformation.
Almost immediately, the two boys felt a powerful pressure on their heads and feet, the feeling of an invisible force attempting to crush them vertically, their heights dropping rapidly. A wave of discomfort overcame Jeff as his genitals regressed, both his dick and his balls shrinking to match his new age. Meanwhile, for Alan, the sensation was far worse than he was expecting, a pain flaring up as he felt his balls get sucked back into his body, the testicles digging through his skin as his internal organs restructured themselves, his dick shrinking and inverting into a tunnel straight through his body, leading to a newly forming womb.
As their bodies shrunk and reformed, both boys felt a dizziness as the Chronivac supplied them with new memories of their altered reality. Jeff received memories of a life as Lucy's twin brother, while Alan received memories of a life as Elaine. During this time, the room began transforming into that of a 9-year-old boy's.
Alan, now Elaine, stumbled around for a moment as her legs grew weak, before she eventually collapsed onto the ground to ease the pain a bit. Jeff's clothes shrunk and resized themselves to fit onto his smaller body, while Elaine's were transformed, redesigned to better fit the appearance of a little girl.
No more than a few minutes after the change was initialized, the pain and pressure ceased. "Ugh, that... was a lot worse than last time..." Jeff groaned out, thankful he was already sitting down. He opened his eyes, taking a moment as the world was spinning, before his gaze locked onto the sight of his friend.
On the ground in front of him was a girl, no older than Lucy, wearing a pair of tight-fitting black leggings, along with a white t-shirt with rainbows designed onto the sleeves. Hand on her head, she looked up. "I-I regret everything..." With a groan of her own, a sharp gasp followed as she realized. "W-We'll have to go through that again when it's over, w-won't we..."
"Probably..." Jeff responded, leaning back in his chair as he recovers from the aftereffects, as well as clear his mind of the haze caused by having memories forcibly inserted into it. "Hopefully it's not nearly as bad..." Even despite the nausea though, upon spotting the rainbow sleeves Elaine was wearing, Jeff couldn't help but ask in a teasing tone, "Did you take wearing your pride on your sleeve too literally?"
The now-girl looked at her friend, confused, for a moment, before looking at her sleeves and seeing the rainbow designs, eyes widening as she immediately went defensive. "I'm not-" She started, before cutting herself off, the defensiveness disappearing alongside it. Pausing for a moment, she finally mumbled, "...Actually, I guess I would be considered gay right now... so, um, maybe?"
Jeff couldn't help but chuckle about how she reacted. "At least you're honest about it." Shaking his head clear of the lingering dizziness, he decided to ask. "So, what now? You gonna lock yourself in the bathroom to 'research' your new body?" He asked with a teasing grin. "Or do you want to sit here and talk?