I know in the last two years, she had turned into a very sexy and grown up young lady. I let her go on a few dates, even though it was against my bett...r judgment. Maggie looked and acted like an 18 year old lady but, deep down she still had the brain of a little girl.Her last date had been the worst, a guy from school. A football player, he was a big kid but, I stand 6 foot 4 inches and 210 pounds. I had heard them pull into our driveway. I didn't to be nosy but, I wanted to make sure he wasn't. But she was my teacher. So I controlled myself.After few days she stopped changing her clothes and used to teach me in the same night dress. The dress she used to wear were of different attractive colours and were hot. I started to feel the warmth in my pants for her when she used to come and teach. I used to hide my erection from her. One day i saw her black bra from her dress and i got a sudden erection. I was looking at it whenever i got a chance. Then slowly this became a habit, she used to. Look at your dick, I've never seen a dick head that purple.I'm about to burst. I think I'll go outside for a minute.Oh no, and waste all that cum?I got on my knees and started to tongue his pee hole.What are you doing? Your my si(s)ter!SO, you need to cum and I want cum.Your ex told me you have a big dick but I wasn't expecting this.I did the best I could at deep throating him.Careful he told me it's been a while. With that burst after burst of his hot cum slid down my throat. He came so much I. .That had been the beginning for Lorraine, she hadn't planned it but just the thought of having sex with handsome young Roger without him knowing that it was her - well, it had been exhilarating! And how fucking wonderful too. Young Roger had been 3 times the man her last lover had been. He'd played with her body until she was almost crazy, sucking on her tits and fingering her until she was ready to come.Then at the last possible moment, just before she was ready to explode he'd mounted her.