My mom and step dad came home last night from an all day drinking session, which they had with my uncle and his wife. Both of them were pissed, but my mom was the worst of the two. I helped my step dad put my mom to bed, and then watched him fall asleep on the sofa, watching a movie across from where I was sat texting friends. I noticed his cock had slipped below the leg hem of the shorts he'd changed into, and it looked big even flaccid.
Feeling naughty and horny, I moved over to where he lay, moved the material of his shorts further up to reveal most of his cock shaft and began to stroke it. He moved a few times, but didn't wake up. His cock however did wake up and became erect. Now with my pussy dripping wet from feeling like it needed fucking, I took a grip of his cock and opened my mouth. Listening hard, I moved closer and let his cock slide over my tongue. Over the next five minutes I gave my step dad a blow job I wished he would have been awake for. At the same time, I slipped a hand inside my panties and played with my soaking wet clitty.
I came first with my step fathers cock filling my mouth as it pulsed ready to cum. Not wanting to clean him up when he came flooding my mouth, I decided to swallow his hot sticky load. It tasted far nicer than my boyfriends and there was so much more too. Milking his cock and balls, I made sure I got everything, put his cock back as best I could and climbed the stairs to go to bed.
This morning both my mom and my step dad had really bad hangovers, but my step dad had enough about him to corner me in the kitchen earlier, and ask me if I enjoyed his cock. I couldn't believe he knew I'd sucked him off, but he had. Before I left to go out with my friends, he said "Your moms out this weekend, you can go for round two if you like".
I didn't answer him, but I was tempted to ask him if he'd consider fucking me instead. Now I don't know what to do. I've had time to think things through and realize it would be so horrible on my mom, but my step dads cock is so big and his cum tastes so nice, I really want him to fuck me.