First off she is 26 years old, very beautiful sexy young lady. A single mom of our grandson, let's call her Allie. This happened last summer. We were all there at the house, we had grilled out that evening having grilled steak and chicken and sides. Also some adult beverages. My tends to get tipsy and passes out most times and this was no different.

It was getting late in the evening and we were drinking having a good time. I was outside with our son, he was on his tablet playing a game showing me what he was doing. With it being around 11pm I told him time for him to go up get ready for bed. So he went up took a shower and then bed. Then it was just us adults up, my wife and Allie and my self.

Wife came outside giving me a hug and kiss saying she was tired and was going up to our room. I said sounds like a plan see you there in a few. I was outside cleaning up from the BBQ, when our neighbor drove up we spoke for a little while before we both go in our houses.

Allie was down in the kitchen putting things away told her thanks that I was going to check on Brian and her mom. Asked her if she needed any help she said she had it covered and she might have another drink though. I said ok see you in the morning.

When I go up Brian our son is passed out in his room, Seth our grandson had been out for a couple hours by now. And my wife was passed out as well in our room. I took a shower changed in some shorts and t-shirt. I went back downstairs to grab my meds and some water when I saw Allie on the couch. She was unaware that I was there, she was occupied with her phone and her hand inside her shorts.

I was watching her play with her pussy and she would play with tit's as well. I wanted to get a closer view so I walked over closer and feeling my cock stirring. She was watching porn on her phone it was step-dad and stepdaughter porn. I could see her hand caressing her perky boob's, while her hand was busy rubbing her clit and occasionally inserting a couple fingers in her wet slit. My cock was standing at full attention watching her. I know it was wrong but at the moment it was just amazing and very hott.

Allie had an orgasm and was moaning softly, she was still watching the porn when she saw me. She didn't bother to hide or cover up. She looks at me and asked if I liked watching I said I did indeed. Allie said I can see that looking at my crotch, she asked if everyone was passed out upstairs I said yes. She asked me if I was just going to watch her or if I wanted to join her.

I said I would like to but your mom is upstairs, she said yeah but mom is passes out and she could help me with my hard member. With that she reaches out for my shorts pulling them down and my cock springs up. Allie licks her lips saying damn that's why her mom is so happy. She starts stroking my cock as I reach down and caress her perky boobs and hard nipples.

Allie took my cock in her mouth and started giving me an amazing blow job she would swirl her tongue on the underside as she sucked my entire 7 1/2 inches, I had to stop her before I shot my load. I told Allie that I wanted to taste her pussy, she pushed her shorts off spread her legs as I was there in front of her. She was completely smooth shaven her labia slightly swollen and wet from the excitement. I started kissing her inner thighs as she let out soft moans, I picked her entire slit from bottom to her clit. She gasped and continued her soft moans. I began licking and sucking on her clit as I inserted two fingers into her wet tight pink pussy. She started to writhe in pleasure as I was exploring her pussy with my tongue. She had another orgasm and moaned slightly more.

As her organs subsided I positioned the tip of my cock at her opening she looks up at says fuck me with your big cock. I start to push in it's goes easily in with her wetness and for me having just eaten her pussy. It was an amazing feeling of her tightness gripping my member as I thrust Allie starts moaning and saying yes. Allie pulls off her t-shirt and I caress her tit's as I fuck her, I lean down and take one of her nipples in my mouth and suck and gently bite it as I continue to fuck her. Allie is saying yes, fuck me, you feel so good inside me. Which is making it so hard for me not to bust deep inside her. I try to focus and keep fucking Allie my stepdaughter I want it to last for as long as possible.

I pull out and turn her over doggy were I get behind her and dive in again licking her pussy and inserting my tongue deep inside her pussy that is on display I run my tongue up to her ass and give her ass a few licks before going back to her pussy. After a minute or two I raise back up and push back inside her with my throbbing hard cock. I start to fuck her harder and faster she is moaning and looking back at me. She is saying yes yes fuck my pussy. After a couple of minutes I tell her Allie that I am about to cum, she spins around taking my cock in her mouth once again as I began to shoot rope after rope of my cum in her mouth she tries swallowing it all but a little escapes out the corner of her mouth.

Allie sucks my cock as I am holding her head as my member is extremely sensitive and I pull out of her mouth, Allie takes this chance to scoop up the cum that escaped with a finger and licks it clean. Allie says she has been wanting to do that for quite a while and is extremely happy that it finally happened. I tell her she was amazing and was wanting to as well but didn't want to because of her mom my wife. Allie says we have to do it again sometime, I say whenever we can but Jess my wife can't find out. Allie agrees and stands up to hug and give me a kiss, her bare breasts and naked body against my chest and body. We get dressed and head upstairs.

Next morning everything is all good Jess wakes up and asks what happened I tell her she passed out and was out for the night. She says sorry she will make it up to me...