I showed up at sebastians house mid afternoon, it was a warm day and the front door was slightly open. No cars on the drive so I knew his parents were out. I walked in to see the living room empty. "Hello?" I called out, no answer. I head to the kitchen for a glass of water, he must be upstairs.

I down the glass and call out again "hello??", no answer. I wander upstairs slowly, the house seems empty, but I know he's in, he rang me up and asked me over. On the landing all the doors are shut, bar one, his sisters door is slightly open. I walk over to ask where he is, pushing her door open to find Laurel laid spread eagle on the bed, naked. She has a blind fold on and has her hands stretched above her head and her legs are apart showing her shaven pussy. Her pert tits are sitting firm and I can see her nipples are hard.

I stop for a second but instantly feel my dick start waking up. I'm not sure what to do, I glance back down the hall but no sign of anyone. Sebastian must be somewhere close by, has he set this up? His sister just lies there, breathing gently. I find myself stepping into the room and my hand going for my zip. Seeing her tight body spread before me soon has my dick hard and it strains against my shorts. She knows I'm in the room now and I see her spread her legs further apart and push her pussy out at me.

I undress myself and my cock stands up straight in front of me. Her breathing picks up as I kneel on the end of the bed and crawl up slowly until I'm positioned over Laurels body. My dick is sticky with precum as I lay it on her stomach and lean in to give her a gentle kiss on the lips. Her body quivers and she wimpers a little. 

She spreads her legs wide and lifts them up, giving me easy access to her tight hole. I rub the end of my dick up and down her pussy a few times, the heat off her feeling incredible on the end of my dick. Then I slowly slip the head of my cock into her wet hole and we both gasp. She's so wet the head of my dick goes in, but so tight that I can't go all the way. I start working my cock into her pussy, penetrating her deeper and deeper with each little thurst until I sink completely into her. 

We both groan as I fill her up and she grips her headboard hard. I start pumping her, sliding the full length of my cock in and out of her but it doesn't take long with the horniess of the situation before I feel her starting to cum. Biting her lip I feel her pussy get tighter and tighter until I can't take it anymore and plunge deep as I spray her hole with a huge load of cum. The feel of cum filling her pussy just makes her cum even harder, digging her nails into my back as she moans loudly.

Just as we begin to relax I hear a judder from the wardrode as, I'm guessing, Sebastian has just shot his load to sight of me fucking his sister....