She stood there aghast, seriously considering throwing the tape measure at his head. "You have got to be kidding," she said flatly. "What makes you think I'm going to do this?"

"You want me." David said confidently, his hand still wrapped around his erection. "And you want this."

"Not that much I don't!" Cat hissed, turning toward the door.

"And I have your clothes," David added, calling after her. Cat stopped, swearing. Even if she took some of his clothes to get out of the house, she knew she wouldn't be able to explain their appearance-or her own clothes'

disappearance-to her curious parents. He had her, and he knew it.

"I hate you!" She sat cross legged on the futon.

"I know," he said. "But I know you can figure this out. And now you have a really good incentive." She glared at him. "Me," he added, as if she hadn't quite understood.

"If I figure this out, you will let the ladder down?"

"Yes, and you can climb up the ladder of love." He wiggled his eyebrows.

She rolled her eyes, sticking her tongue out at him. Sighing, she picked the paper and pencil up and leaned over the dresser. She grinned mischievously, and then gave him a good view of her behind, spreading her legs a little. She heard him groan, and she smiled slyly, sliding her fingers between her pussy lips and spreading them.

"The sides of a right triangle are a squared plus b squared equals c squared, where a and b represent the lengths of the legs and c is the length of the hypotenuse," she murmured.

"Set it up like I showed you," David called over the side. She could hear him working his cock. "And hurry!"