Merry Christmas - A Loving Sister

She looks as I have the table all set and food on it! She says how sorry nobody can make it. I pour a glass of wine and we feast! Dessert comes around and wine bottle number two! I look outside, still snowing, she will have to spend the night. She has no pj's I find her my extra pair, the pants a bit tight but shows her nice curves. We end up both crashing on my king bed. When I wake up I have the biggest hard on and my sister is lying on my chest with her arm around me. I am very nervous and try to think of something else but I can see her butt crack and a bit of red undie. My cock suddenly pokes thru the pee hole cause I never did the button up! Just then my sister moves her arm and her hand touches my cock. She feels it a bit and wakes up. She says omg, you are hard! Oh yeah, she then asks when was the last time I had sex? A month I say but more like a year! I ask how about you? All the time she is looking down at my cock and keeps her hand caressing a little. She tells me last night before she came she blew her boyfriend, it was Christmas so she swallowed every drop. She started telling about how it's 7 inches and she was deep throating it and licking it, suddenly she begins stroking me slowly. "I stroked it while I licked his balls" I could feel my cock getting harder and I start breathing heavier, she has magic hands. My butt cheeks start tensing up, she strokes faster "then I wrap my mouth around it and bob up and down slowly" Right when I am about to cum, I feel her lips on the tip, she is jerking me off in her mouth. I start cumming ropes and ropes of cum in her mouth, while she is jerking me off feverishly, I hear her gag a little, when I am done she gets up and I see cum dripping down her chin and side of her lips.. best orgasm ever!