I WENT BACK TO MY ROOM LAY ON MY BED AND JUST RUBBED MY HANDS ALL OVER MY BODY AS IF I WAS A WOMAN SELF-INDULGING HERSELF. NOT ONLY WAS I WEARING AN A...LL SCARLET RED OUTFIT AND STOCKINGS, THIS WAS LINGERIE WHICH BELONGED TO SOMEONE OTHER THAN MY sister. I HAD ONLY EVER WORN MY sister’S PANTIES BEFORE AND THIS ADDED AN EVEN BIGGER THRILL TO THE EVENING.BECAUSE I KNEW NO-ONE WOULD BE HOME FOR ANOTHER 3+1/2 HOURS I DECIDED IT WAS SAFE TO VENTURE FURTHER AFIELD THAN MY BEDROOM. SO OFF DOWN TO THE. Now there I was, rigid cock in hand at the doorway, being stared down my the girl I’d been spying on. “Uhh… hi, Kelly.” It was all I could muster, my mind racing about how many ways this was about to go horrifically wrong. “You dirty perv, you are disgusting!” I tried to start backing off, but Kelly came charging after me. “Oh no, you fucking don’t, you don’t get away that easily!” I kept backing up, which was fine until I realised I had backed into Matt’s room and no had nowhere to go. “You. I felt like I had no control now. I knew this was so wrong but I couldn't bring myself to stop. I took both my hands and tugged up on her shirt, pulling it up over her head. Emily's tits came free of the material and were resting on her chest.We just looked at each other for a moment and I lowered my mouth to a nipple. I began to suck and chew on the tips of each one. Emily didn't object or fight me in any way. She brought her hands up into my hair and basically urged me on. Those nipples. I rubbed the head of my engorged cock up and down her wet pussy several times, before sliding the head, then shaft all the way in. I held my cock inside her for a few moments letting her get used to it, then i began long, deep strokes, sliding my cock almost all the way out, then all the way back in. Slowly at first then I started to fuck her harder and faster. A few minutes and she was cumming on my cock as I fucked her. After her orgasm subsided, I took her legs off of me and rolled her over.