Back in his room, barely half an hour after masturbating with his stepsister, Chris was still a little disoriented.

He'd just jerked off in front of Laura. She'd fingered herself. She'd touched his cock. She'd licked his cock. Was any of this normal? Granted, they weren't related, but it still felt...taboo. He was sure he should feel guilty. But he didn't. Was that a good thing or a bad thing?

Downstairs, Laura was working on beef stroganoff wearing her jeans, her tank top, and a permanent smile. She kept thinking about the experience she just shared with her stepbrother. Laying between his legs, watching him stroke himself, she working her...