Having returned home for a few days after three years away at financial college it appeared as though nothing had changed in the Keaton household. Mallory was still a complete pain in the arse, and Skippy still trailed her like a love lost puppy. I'd expected some changes but was beginning to feel like I'd always felt at home, stuck in a boring suburban nightmare. It all changed though dramatically about a week ago. That particular night I was lying in bed reading a sex mag when there was a knock at the door. Frantically I pulled up the sheet, tossed the mag under my pillow and brought up my knee to hide my erection.
" Come in," I said, and was mighty relieved to see it was only Jennifer my youngest sister.
"Alex, I need to ask you something," she said as she sat on the end of my bed.
"Shouldn't you be asleep by now?" I replied.
"Well before dad left on his teaching seminar I had no problems. Now every night there is a strange humming noise from mums' room that keeps me awake. What do you think it is?"
My rapidly deflating erection suddenly sprung to life as I thought of good old mum going at it with a vibrator. My mum, Elise Keaton, paragon of virtue. At 40 years of age though she was still a looker and it was arousing to know that she kept some sexual toys away for a rainy day or night as the case may be. Unconsciously I stroked my cock through the sheet completely forgetting Jennifer was there.
"Alex!" Jennifer spluttered, "What are you doing."
I returned from fantasyland to see Jen staring at my erection. Shit, I was in trouble now. I stared at Jen for an age trying to think up an excuse but instead suddenly thought about just how much she had changed. Where had that tomboy gone? In the last 12 months alone Jennifer had grown at least 5 inches, to a lithe 5ft.2 inches and let her red locks grow past her shoulders. But most of all she had acquired a set of incredibly perky breasts. I could see the traces of her nipples as they poked through her cotton nightie. Finally I saw a young sexual woman not just my sister.
As she sat cross-legged at the foot of my bed I noticed she wore no panties! My cock throbbed spasmodically as there in all its glory was her sweet pink pussy crowned by a bed of soft red down. I desperately needed a woman any woman and there she sat at the end of my bed, but she WAS my sister. At first I felt confused, I knew incest was wrong, but that primal urge to fuck overpowered my conscience. This was an incredible opportunity to be taken regardless of the consequences. Though 18 I knew Jennifer was a virgin and a bit naïve sexually so I decided to play it out, see what response I would get. So slowly I drew back the sheet and exposed my rock hard prick.
"What this? Oh just an appreciation of you sis. "
"Alex it's well beautiful and huge, but isn't that painful?" she cooed as she raised her hand tweaking her left nipple unconsciously.
That was it I knew I was in. What girl could resist the sight of a standing cock, even if it was her brothers? Still I decided to move cautiously, now was not the time to frighten her off.
"Well Jennifer not exactly painful but it does require attention. You've seen an erection before haven't you?"
"Yes," she giggled, her eyes never leaving my hard on.
"Jennifer would you like to help me, would you like to try something new?"
Jennifer smiled wickedly and nodded still transfixed by my cock as if it was a magic wand. I sat up and lathered my rod with some baby oil then gently guided her off the bed and placed her on her knees between my outspread legs. I placed her hand on my prick and as it gave a short spasm she wrapped her fist securely around the base..
