She must have just got home from volleyball practice because she still had her blue volleyball t-shirt on along with her knee-pads and some very short...short volleyball spandex. I quickly averted my eyes up to her face. “Nothing, sweetheart. Just talking to myself about work.” I tried to change the subject quickly, “How was volleyball practice?” “Oh, you know, the usual,” she replied. “Dad… I know you weren’t talking about work. I’m almost eighteen. I’m not an idiot. You are trying to think of. I asked her to keep reading. I had to admit I was eager to know how the story of my horny grandmother and her brother was going to unfold.“It’s just girl stuff about school and clothes, nothing happened. Oh, here it goes”“Golly, it was so hot! Mom and dad were visiting Uncle Paul, so Donny and I were alone all evening. After we fed the animals, we went to his room and he dropped his clothes on the floor. His penis was already as big as before and he slowly stroked it while he watched me. Like saying hello or goodbye, that sort of thing. What I didn’t expect was his tongue! I was just so naïve, I can’t even tell you. But I didn’t want to seem like I was this total infant, so I let him do that and even tried to respond back, but I guess I tightened up a little when his hand went right under my sweater and began to caress my breasts. He stopped after a few minutes and asked me if I was ‘frigid’! God, I was just like way embarrassed. I just said, ‘No. Why are you asking me that?’. By this she was cleared what was my intention to be and I thought she was willing for this and so I raised her t shirt to her neck and un-hooked her bra without any notice. I could see her whole bare back she was so beautiful and getting more beautiful when more and more of her body is exposed. I resumed my massage and now I was touching her boobs in between. Now she stood lowered her t shirt and told her pain has gone and that I can leave. I asked her what is this and we can have some good.