Offer to return the favor...

I was completely dumbfounded as I watched Ruby lay between my legs stroking my spent cock, slowly bringing it back to life. The sultry stare she was giving me had me virtually hypnotized and I couldn't believe the words coming out of my own mouth as I asked, "Would you like me to return the favor?" I had eaten out my girlfriend's pussy quite a few times and actually enjoyed doing quite a bit, making her squirm and moan, but this was my stepsister!

My very sexy cocksucking stepsister who was currently half naked and lying between my legs.

"Really," she asked, somewhat surprised at my question. "Would you really do that for your sister," she said as she continued to stroke my cock inches from her face, her hot breath blowing against it as she spoke.

"Yes," I replied, wanting very much now to be between her legs making her writhe in pleasure. "I want to make you cum."

Ruby looked my in the eyes and gently bit her lower lip, then slowly slid back off the bed and then stood with her back to me. She looked over her shoulder at me as she pulled her tight t-shirt up over her head and tossed it in the corner of the room. "You know," she said as she bent over and pulled down her panties, giving me a sweet view of her round ass, "I'm normally a bit shy about letting anyone go down there..."

I had a hard time believing that about the girl who just blew her stepbrother, but I didn't know how to say so without sounding like I was calling her a slut. "Don't worry," I said as I watched her step out of her panties, "I'll be gentle..."

"Oh, don't worry about that," Ruby said, looking back at me with a sly grin. "I don't mind if it gets a little... rough. I just hope you don't mind if it's a little different from what your used to." She turned around to reveal herself to me.

Two large round breasts each with a stud through each nipple, tattoos too numerous to count decorating her skin and... a ten inch long rock hard cock pointed right at me!