I giggled and gestured to my son and said, "That's up to Scotty."

Jilly turned and fixed her brother with a sultry stare, "Scotty, can I please suck your big, thick dick?"

Scotty trembled and looked at me. When I nodded and said, "Son, you can do whatever you want to with us," he scrambled to his knees and shifted his way over to his sister, his erection leading the way.

Jilly took his cock in her hand, wrapping her slender fingers around the massive penis and then looked coyly up at her brother. "I'm sorry for being so mean to you all these years, Scotty." She stuck out her...