When her ass pressed against my c**k, I almost unloaded. Once I had it under control again, I gently wrapped an arm around my sister's body, hugging her tightly against me. I knew she could feel my erection pressed up between her butt cheeks. I had to fight my own desire to grind my c**k up the crack of her ass. It happened a few times anyway, which made Maddie murmur, "That feels nice." Her voice sounded very sleepy, like she was drifting off.
With a full body shudder that I'm sure she could feel, too, I squeezed my trembling arm even tighter around her body. I couldn't explain it, but I had a profound need to be as close to her as possible. I wished I could be even closer. For nearly an hour, I clung to my sister. She was warm. I could hear her breathing deep, slow breaths. She sounded
