The last thing I remember after sitting down in my recliner and finding something to watch on tv before my eye lids began to get heavy and I willingly let them close before dozing off to sleep.
The next thing I remember is slowly waking up to feeling something odd between my legs. Not sure whether or not I was dreaming or not I ignored it not opening my eyes until I felt the sensation get stronger. I slowly opened my eyes and as they focused, I was shocked at what I was seeing.
My cargo shorts had been unzipped and my cock had hardened under a set of delicate hands with pink fingernails. I looked up to see not my girlfriend holding and jacking my dick but her younger 18-year-old sister Casey who was visiting for the weekend. The shock was completed by Casey wearing only a sexy black bra and skimpy string bikini panties.
"Holy shit Casey what are you doing?!" I cried out as the reality of the situation become clear to me.
She gave me a naughty smile as she leaned down and kissed my lower lip before saying, "I think it's pretty obvious what I'm doing. And I think it's pretty obvious that you like it." To emphasize her point she gave my dick a slightly harder tug with her hands making it throb.
"Where's Lacey?" I asked still panicked.
"Don't worry, Lacey went to the store for more beer." She said as she continued to tug on my dick. "Doesn't this feel good?"
"Casey we can't do this you know it's wrong. You're my girlfriend's sister." I said as my dick continued to throb under her gentle stroking and pulling.
She gave me a naughty pout as she squeezed my dick before saying, "Oh come on don't you think I'm hot? I've seen you looking at me when Lacey isn't looking."
She knew she had me as I started panting from the increasing arousal under her hands. "You're a beautiful young girl Casey, but this still isn't right." I said panting as I tried to ignore her playing with my dick.
She then let one of her hands off my dick and used the other to trace the crown of my penis with a couple of her fingers. As she did this, she lowered her face level with my erect penis licking her lips as she continued to tease the head of my penis.