That sort of puzzled me, but it didn't really bother me. He sat on my bed and asked me if I knew how to 'jack off'. I hadn't heard this term before ...nd said that I didn't have any idea what that was. His smile was huge. "You are going to LOVE this then! Jacking off is playing with your cock while you think about a naked girl and what it would be like to fuck her." I nodded my head and wondered what he meant about playing with your cock. I knew that fucking a girl meant putting my cock in. As she put her leg slightly across the other, I could only see the swell of her mound, not the pussy lips. She had well-tapered smooth thighs and calves. Oh, God! She is an angel.Di raised her eyebrows as if asking, “What?”. By seeing her like that in her birthday suit, my member was ready again for the next attack. I jumped on her. She fell on the carpet on the floor.I pushed my head into her smooth thighs. Kissing her both thighs, I crawled to her crotch. Quickly, my sister opened her thighs. As hot as Wendy had been the night before, Pam was on fire."Oh Jim, I've got to have you inside me," said Pam as she straddled my cock and impaled herself on it. She shuddered as my length disappeared into her womb. Pam began to ride my shaft with wild abandon. Her hard breathing was punctuated by heavy intakes of air accompanied by high pitched sounds. "Ohh, your cock feels so good stretching my pussy. I can feel you deep inside, baby!" she said."Pam, I love these big tits," I said as I pulled. Furthermore, with their delivery of the package to its rightful owner, the firm's obligation to any involved party was now ended.The letter raised far more questions than it answered. Who wrote the diary and when? Who donated it to the museum and how were they related to me? What museum would not want an original document from probably the 19th century, and how could a diary possibly be 'inappropriate for either display or study'?The best place to start answering these questions it seemed was.