About a week ago my sisters bf came onto me in my car and we had sex. The guilt was so immense that i really didn’t know what to do with myself. But as time went one and I realized we had actually got away with it, I wanted him even more so.

We hadn’t spoke since we had sex but yesterday I texted him asking if he could come by my apartment to help me with my AC unit. The entire day went by and he never showed up, I became so upset I even started to cry. I wanted him and missed him so much. I knew it was wrong but I had to have him.

My sister and I are very petite but similar in size so i thought it would be sexy if I put on my sisters panties, skirt and blouse for him. So there I was sitting and waiting in my sisters panties all alone.

Then a few hours later I heard a knock. I run to the door and there he was. He had a t-shirt and grey sweatpants on and his bulge was so noticeable my knees almost gave in. He didn’t have any tools with him which meant he knew the real reason of my text.

He immediately noticed I was wearing her clothes and he took a deep breath and said “ You are the most beautiful sight I’ve ever seen”. I melt into his arms and he props me up by the hips and we kiss for several minutes outside my front door.

I get my confidence back and drag him in my apartment by the shirt. And throw him onto the bed. His big cock is tenting the sweatpants which I find so fucking hot. I pull his pants off, get on my knees and start licking his balls. He lets out a moan of relief and I slide my tongue down further to his asshole. His cock is throbbing and I haven’t even touched it yet. He grabs my hair and says “open up now” and the next thing I know my mouth is full of cum after a few hard pumps. I had forgotten how horny I was I was just happy he was here.

As we lay together, he’s naked and I’m still in my sisters outfit but we talk for a while about how we both genuinely want to be together. There are certainly still some issues we need to figure out obviously.

After cuddling and flirting he started to grab my ass and pull my sisters clothes off me and said “Fuck they smell like her too.”

He would go on to fuck me and rail me for hours, multiple rounds and it was some of the best, most passionate and raw sex I’ve ever had.

All while still wearing my sisters panties.