I was very keen to meet her and give her all pleasures in her life but was afraid to approach her. So I told her about my person all details like am s...ill single and I will get married in 2 years and I have lots of doubts about married life wanted to clear all and asked help from her. She laughed and said she will help. So I started to ask her about girl’s menses and masturbation and all. Initially she hesitated to open up. Later she felt comfortable with me and started talking everything with. "You slide from my lap and onto your knees, pulling your dress up over your head. As you do, I stand and quickly pull off my clothes. I kneel behind you and slide my hands up your back to unfasten your bra. I move on my knees between your feet and you spread your knees wider to make room for me. My hands lovingly caress your back and sides, your hips, your cheeks as I move up to you. I hold my cock and move it between your legs, slowly rubbing it up and down over your wet and swollen pussy. It. ." Unable to think of anything I could say that would spare me, I collapsed into a pitiful, sobbing heap of jelly. Sure that my doom was sealed.But then, like a merciful angel, Monica took pity on me and offered a way out. "I think what Nellie is trying to say is that he wasn't STEALING, he was only BORROWING his big sister's panties," she rationalized, "Isn't that right, Sweetheart?" Oh, yes, Mommy!" I replied, eternally grateful. Only after I spoke did I realize what I had just admitted. I continued and with few more stroke her pussy became wet and our pain got way and now I was enjoying and within few minutes she also stopped resisting and enjoying with me. After 2-3 min she cummed and after 5-6 min she again cummed with me I emptied my full load in her in laid on her.After few min she turned and I laid beside of her she was staring at me and as soon as I got my senses I said her not tell all this to my mom and if she does that I will say everybody about this and also say that.