Onour way home Sandy was asking me if I really did not mind helping herout. I told her again it was no big deal and that by helping her outit was my w...y of showing her my support. Laughing softly she smiledat me and told me that the next style or styles she tries on me mightmake me change my mind, I just smiled and shook my head in a way totell her that would not happen.We finally got back to her house and I kissed her goodnight, shetold me sleep tight and that I had been such a good sport to. I couldn’t bear it any longer. My dick had grown fully in my pants and i made a decision that I have to fuck her or I will never get this chance again.My lust got the better of me. I casually asked her ‘Mom, if I ask you one thing right now, will you give it to me? She said name it and it’s yours my son. I said mom I want you. She frowned with anger and got up from the bed and gave me a tight slap. My cheeks became red and I almost cried. She scolded me that tomorrow is my exam and told me to. After coaching him on the finer points of talking another guy into bed, he set upon his prey. The next day he excitedly came to my door bursting with his new discovery.“It went just like you said it would,” he effused.“So how did you like it?” I asked.“It was really fuckin’ hot but we didn’t know what we were doing so I want to know what it’s supposed to be like. Can you show me,” he asked shyly, his dark eyes boring into my own.Did my ears deceive me? Was I getting this? Was this amazingly hot. The new sensation from my ass combined with him pounding me against the wall was going to make me have an intense orgasm. “Daddy... “ I panted. “I can’t…” I moaned loud. “I’m gonna come!” I couldn’t think straight. But I needed his approval. I wasn’t going to come until he commanded me to. “Yes, Babygirl, come for Daddy.” He said as he fucked me even harder. Just by his command the orgasm started to rip through my body. My pussy clenched hard on his cock, I threw my head back and dug my hands.