"I don't know what you two think of me now," Susan said, "but I couldn't stop myself."

She was sitting on the ground under the lemon tree, leaning against the rough trunk. She had pulled her shirt over her shoulders. One flawless tit was exposed, and her ragged shorts lay in her lap, concealing her bushy cunt. Sitting on a small patch of weedy grass, Ginger gazed at her mother, long legs crossed, still naked. Just to one side and behind his sister, Toby leaned against another lemon tree, equally naked.

"I heard you two, and then I watched. Something came over me, something very strong, and I had to do it. I hope it was okay." Her voice was very soft, low, anxious. She looked at them with misty eyes, her cunt still pulsating sweetly from the fucking her son had given her. She could feel his juices still inside her cunt, hot and wet, seeping slowly from the puffy slit. "Your father and I, we… well, that doesn't matter now. What does matter is what we do about this."

They still said nothing.

"I don't believe you two have done much with each other, but you were getting close. You haven't, have you?"

Ginger shook her head, her soft hair waving slowly about her exquisite face. Toby shifted his foot, looking at their mother.

"Only what you saw us doing, Mom."

Somehow that pleased Susan. Not that they had waited, but that she wanted to be in on it when they did something with each other. Her eyes lowered to her son's dangling cock and balls. He had little hair around his cock, and none on his balls. He was young, so preciously young. He was not skinny, but not fully filled out, either. She gazed at the smooth head of his cock, seeing a small bead glisten on his piss-hole. She swallowed, and shifted her gaze to her daughter, looking at the tight tits, so small that they were mostly nipples, but pink, perky nipples. Lowering her eyes, she stared at the scattered fuzz at the top of the soft, tight-looking slit of Ginger's cunt, and felt more moisture fill her mouth.