Her sister's realization.

Jessica lay on the bed, shivering slightly at the cold air. Tonight would be the night; she hated to call John out, but ever since she'd moved into her sister Sarah's spare room, she'd seen little signs. She didn't want to be an ungrateful guest and she had nowhere else to go after the foreclosure, but she also didn't want complications in the relationship with her sister. And this was definitely a complication.

John had never said anything to her, but every now and then he had this gleam in his eye. She'd seen that gleam before, on guys that wanted to fuck her. Of course, he had Sarah, and it was fairly obvious they had an active sex life, but John was up to something.

The weird thing was, John did the laundry; bachelors were the only men that did laundry. She'd asked Sarah about it, and her only response was that he loved helping out. Jessica knew it would be trouble, but she spied on him anyway. John carefully sorted everything, gathering all the panties into a separate pile. Then he dived in and sniffed them: all of them, hers and Sarah's. After that he pulled his pants open and jerked off on them, spraying semen all over them and rubbing pairs together until his cum was on everything. It didn't matter that he put everything through the machine on the hot/hot setting, it was just creepy as hell.

How was she going to tell Sarah about this? What would happen if she did? She decided to sleep on it, but after what she'd seen she couldn't bear to put on a pair of her panties. Just in case. So she slept wearing nothing but her favourite tee, a simple white that she'd cut off just below the breasts. She didn't even climb under the sheets; also just in case.

She was staring at the ceiling when she heard the non-sound of her bedroom door being quietly opened. John was going to try something. A part of her shuddered, but the other part had an idea. If Jessica could show Sarah semen-stains on the bed, or on herself, that would be hard evidence. But that meant she couldn't scare him away. She pretended to be asleep.

A finger traced Jessica's thigh and she "unconsciously" shifted her leg so he'd get a better view. Instead of looking though, she felt his tongue touch her base and heard a deep intake of breath. He was sniffing her. "Do not react," she told herself, and managed to do nothing, barely.

The tongue slid up Jessica's pussy and stopped at her exposed labia. Her cunt was an "outie" as John now knew, and she could only barely restrain herself under the eager attention of his licking and nipping. But if he went oral, there'd be none of his cum on her; what about evidence?

Wait, if he went oral, there'd be cum on him.

Jessica tried to hold out as long as she could, but eventually the tender and forceful cunnilingus **** caused her to gasp.

It was like a switch had been flipped. He started frantically eating her pussy, tonguing and nipping and rubbing with nose and chin and lips. Jessica's hips started bucking under the attention and she arched her back, gasping and moaning as she watched the ceiling and savoured the tongue-fucking. She wasn't sure how, but somehow he mas managing to lick her g-spot!

With a sudden sharp gasp she orgasmed; a part of her thought "evidence" as she sprayed his face, but most of it didn't care. If that's what John's tongue could do, she wanted his cock. She felt the push on the bed as he started moving up.

She was astonished when the light flipped on and John's voice said "Honey?" from the doorway. Then Sarah's cum-soaked face pressed into hers and Jessica's own pussy juices dripped into her mouth from her sister's tongue.