Ben's eyes widened in shock. It wasn't just the sudden closeness of Kat's face, but also the deep, real pain he saw in her eyes. "What?! Kat, are you insane?"

"No," she whispered, looking at him sadly. "I'm just fat. Look at me, Ben, I'm all... Round and squishy and bulging all over the place..."

As she spoke, Kat looked herself over critically, nodding dejectedly toward her plump butt pressed on her brother's thighs and her huge breasts squashed between the two of them. Then she looked down with a sigh, shaking her head.

"Kat, really, what is wrong with you!?" Ben said, almost angrily. He shook her lightly, trying...