Jon's mouth began to water as he realized what was about to happen. Lisa's khaki capri pant legs shortened, darkened, and fused together, forming a skirt like Mrs. Watson's. Jon could now clearly see that Lisa was wearing identical underwear to Mrs. Watson's. At the same time, Mrs. Watson's hair darkened to match Lisa's ginger locks, and freckles cropped up on her nose and cheeks. The two could have been sisters.
To Jon's slight surprise, Lisa began talking, "Now, who can tell me what three pieces of information we might have about two triangles while still being unable to prove that they are congruent?"
Something flashed in Jon's mind. He knew this! He raised his hand, and Lisa called on him. "An angle and two sides?" he asked.
Lisa and Mrs. Watson smiled simultaneously, but Lisa continued speaking, "That's right, Jon. And how do we abbreviate that?"
Jon thought a moment. "ASS?" he said.
"Yes!" said Lisa as her and Mrs. Watson's faces lit up. "So tell me, Jon," she continued as the two ladies maneuvered themselves onto their stomachs and hiked their skirts to the waist, filling Jon's view with the seats of their panties, "am I congruent with Mrs. Watson?"
