"Oh, that's a good one," Lisa said, mimicking it. "Well, Jon, are we?"
Jon wanted to say yes, but they weren't. Jacqueline was older, and taller, and still had a slightly bigger bust. Lisa's skin was still fairer, and the facial features didn't match up. But as soon as Jon noticed these differences, they began to correct themselves. Lisa's chest expanded, and her skin tanned out, matching Jacqueline. Jacqueline's body shrank, meeting Lisa's 5'3" height, and her face shifted until it was identical to Lisa's. Finally, Lisa's body seemed to mature, loosing its teenage qualities.
Jon looked at the two women, now in identical 25-year old bodies, and said "yes, you're congruent."
