Lisa said "Think!" She stared at each other, brows furrowed.
Lisa asked, "Is there anything I can do that Ty cannot?"
Lisa answered, "I doubt it. But how would that help? I've already confirmed that neither of me is Ty, so both of me is Lisa. Even if I had some ability that Ty did not, I both have it."
Lisa observed, "Only some special ability that I have can fix this."
"And the only special abilities Ty game me are..." Lisa started.
"Undoing and redoing transformations Ty has previously done to me," Lisa said.
"And," Lisa said, "Transforming Ty back to his normal form!"
"That's what I have to do!" Lisa said. "Either of me should be able to do it!"
"And when either of me do that, one of me will transform into Ty!"
"That me will cease to exist," said Lisa, frowning.
"Both of me are the same, or at least the same other than the experiences of the last hour. And even that is mostly the same. So that should be no big deal."
"But what if I am the me that transforms?"
"I have to do it," Lisa said, "so both of me should do it at the same time."
"Wait! There's something I have to do first! For one last time!" Lisa hugged her, and then passionately kissed her.
"On the count of three," Lisa said. "One! Two! Three!" Lisa could see herselves concentrate as hard as she ever had in her life. She both passed out.
She was awakened by another knock at the door. She looked down, and saw that she was clothed. She looked around, and saw Ty, apparently passed out. She opened the door just a crack, this time wearing a genuine smile. Diego was there. "We're almost ready. Sorry, Dad! We need one more minute, and we'll be down!"
"OK. I'm patient, but please don't keep your mother waiting long." Diego headed downstairs, and Lisa locked the door.
She was able to wake Ty.
"What happened?" he asked. "I started transforming into you, and must have blacked out. That's never happened before!" He looked scared.
"There's no time! You're fine. I'll explain later! Get dressed quickly! We're late for dinner!"
Ty hurriedly dressed, and they headed downstairs.