Mark lifted his sister from him. She looked so satisfied, having felt his cock inside her. Her hair was ruffled from their frantic fucking, but it only added to her beauty. He could have laid there forever, just waiting for his cock to recover so he could fuck her again, but he was expecting his mum's sister, Janet, to pop round this evening to check everything was OK. "Grace, Janet will be here soon, we better get dressed"
Grace stood from the bed, her pussy still tingling from the penetration of her brother's thick cock. She didn't really want to move, but she knew Mark was right-Janet would be here soon, and the last thing she wanted was to get caught on their first attempt. She walked to her wardrobe, and picked out some skinny jeans and a a halter neck top. She draped them over her desk chair, and rummaged through her drawers for some fresh underwear. As she dressed, Mark picked up his dressing gown, and pulled it on. He walked up behind Grace, and started to kiss the back of her neck, and cupped her breasts, which were now encased in her top. "Gracie..." he murmured, feeling himself become aroused already, "I can't wait until later" Grace giggled as she felt her brother become semi erect and his cock push into her arse cheeks. "Neither can I Mark" she replied huskily, turning to kiss him full on the mouth. They stood like that for a few minutes, probing each other's mouths with their tongues, before Mark pulled away to get dressed.
Janet walked through the back door without knocking, as she always did. She was pleasantly surprised the kids had managed to keep everything relatively tidy in their parents absence. She found Grace sat in the lounge, watching TV. She heard Mark put the telephone receiver down in the hall, and then he followed Janet into the lounge."Hey" Janet said, and they both replied "Hi Janet".
"Is everything OK, no problems?" Janet said, obviously in a rush. She had shopping to do, and kids to pick up from an after school club. She was glad that Grace and Mark seemed mature enough to take care of themselves. "Everything is just fine," Mark said, to which Grace added "We have been getting on really well Jan, no need to worry."
Janet seemed happy with this and said "well if you need anything, you know my number. I will nip back in a couple of days, OK?", and with that she walked to the back door, followed by Mark and Grace, shouting "Bye" as she walked round the house and to her car on the drive.
Mark and Grace both listened for the car starting, and driving away. Grace deliberately walked to the back door, and turned the key."Just in case", she smiled, and then "what do you fancy for tea?"
Mark was glad that Janet wouldn't be back for a few days. He and Grace would be able to have plenty of time to enjoy each other before their parents returned. He had all kinds of plans for Gracie, things he had never dared ask any of his girlfriends to do. But Grace had promised to keep quiet, and he was going to take full advantage of it.
He walked over to Grace, who was now rummaging aroung in the fridge, and slid his hands round her waist. He turned her around roughly, and kissed her, pushing her half into the fridge as he did so. He reached up behind her neck, and untied Gracie's top. He pulled it down at the front, and felt her bare bra less breasts tumble out in front of him. She looked stunning, standing naked from the waist up with her skin tight jeans clinging to her every curve. "Mark" Grace said, sounding alarmed. "Mark, there is someone at the window." Mark stopped what he was doing, and half froze. He was going to get in serious trouble now. It must be Janet, he thought. She's forgotten something, and come back. He turned to look at the intruder's face, and was relieved to see it was only John, just as he had planned it....
Grace pulled her top up, embarrassed at the voyeur peering in at her bare tits. She was relieved it was one of Mark's friends, but even still, someone knew, and they would have to keep him quiet. "Grace, go up to your room, I need to talk to John and make sure he stays quiet." Grace nodded, and went up to her room as she was told. She closed the door behind her, and sat on the bed wondering what Mark would have to do to keep John quiet.
Mark waited for the sound of Grace's bedroom door to close, and then went and let John in. "Hey", he greeted him with a smirk, "Are you ready to see what a dirty whore my sister is?"
Mark loved Gracie, and didn't really consider her to be a whore, but he was going to treat her like one, and he was sure she was going to enjoy it once she got started. He told John to go into his parents bedroom, where there was a kingsize bed, and then went to Grace's room.
"Gracie, look." he started. He looked at her, perched on her bed, she was so fucking gorgeous. "John saw...well, everything. But he has promised to keep quiet." He saw Grace visibly relax. "But only if...Grace, John wants you to suck his cock."
Grace was shocked. John had barely spoken a word to her before, although she had caught him looking once or twice. She didn't want to even kiss him, let alone...
"Grace, he said he will tell Mum and Dad..." Grace looked at her brother. He looked frightened at the prospect of their parents finding out. She couldn't blame him. He would almost certainly be chastised the most, and would definitely put an end to their budding relationship.
"OK", she said reluctantly. "I'll do it...for you, Mark." Mark smiled inwardly, his plan had worked! When he phoned John, it had not been difficult to get him agree to let Grace suck his cock. At first, John hadn't believed Mark had fucked her, but when Mark had offered to prove it, and had done with the little display through the window,John had been more than happy to play along. Now Mark just had to convince Grace of it. And he had! He could feel himself becoming hard, thinking about what was to come.
But to Grace, he said quietly, "He is in Mum and Dad's room." He watched as she stood, and walked to the door. "Grace," he said. "Leave the door slightly open. I will be just outside the door if you need me" Grace looked at her brother. She didn't really want to do this, but she would close her eyes and pretend it was Mark. She imagined later, when her and Mark were alone, it would all be worth it. She walked to her parent's room, and as Mark said, left the door slightly ajar.
John had stripped, and was lay on the bed. His cock was limp, and lay on his pubic hair. He looked at Grace as she entered. Her breasts were straining against her top, and he could see her nipples very faintly through the fabric. Her long blonde hair was down, and flowed over her back, bouncing slightly as she walked. John had always fancied Grace, but she was way out of his league. But now, here she was, and about to suck his cock. Grace looked at John, waiting for her. He wasn't bad looking, but not nice enough to tempt her. "Stand up", she said, gently, and watched as he pulled himself to the edge of the bed. Grace walked to the bed where he was standing, and sat on the edge of the bed. John turned around to face her, his cock just inches from her face, and beginning to harden. Grace looked momentarily at his cock. It was smaller than Mark's, but about average. She guessed it was around 6 inches erect. Reluctantly, Grace opened her mouth and wrapped her lips around John's dick, and held it there in her mouth, feeling it grow to fill her mouth. John looked down at the most gorgeous girl he knew suck him off. He could see below his dick her tits through the opening in her top. She was bra less, and her tits were jiggling as she moved her hot mouth over his shaft.
Mark stood at the door, peeking through the gap Grace had left. He watched as his horny little sister plunged her mouth over his friend's cock. Grace's tits looked amazing, bouncing up and down as she moved her head back and forth. His own cock was twitching, and hardening as he watched his own sister suck a near-stranger's cock, and Mark now began to take his clothes off silently, waiting for the right moment to enter the room.
Grace surprised herself. She was taking John's cock in her mouth well, and it wasn't as bad as she had imagined. In fact, she began to feel quite horny, being forced to suck his cock in exchange for silence. She felt John's hands run through her hair, and push her head down, and up, a few times, before dropping behind her neck and untying her top and releasing her firm tits. Grace didn't object. She allowed him to withdraw his throbbing cock from her mouth and pull her to her feet. His hands started massaging her tits and tugging her nipples, before dropping to unzip her jeans. Grace turned her face upwards, and let John kiss her full on the mouth. Her pussy was growing wet from him tweaking her nipples, and she had almost forgotten that she was meant to be sucking his cock. She let him unzip her jeans, and drop to crouching position to pull her jeans and panties down.
John looked at the smooth pussy in front of him. Ordinarily, he would have loved to plunge his tongue between those lips, and lap up the juices he could see forming. But they had agreed a plan, and he had to stick to it. John stood, and kissed Grace again, running his hands over her naked body, and felt her tremble in anticipation. Then he walked to the top of the bed, and sat down with his back against the head board, and beckoned Grace to follow.
Grace crawled up the bed, intending to let John fuck her. But John had stopped her, and pushed her face back towards his hard cock, and held her hair in a pony tail, sliding her head up and down, letting her hot mouth engulf his cock. She was kneeling, and John could see her arse in the air, and could make out the outline of her arse cheeks at the end of her smooth back.
Mark saw his cue. He silently slid in the room, and watched for a minute as his little sister rammed his friend's cock in her mouth. She was in perfect position. Her round arse was upturned in the air, and her pussy hole was glistening. She was enjoying it, he thought. Dirty little bitch, Mark thought approvingly, as he moved towards he bed.
The first Grace knew of her brother being in the room was when she felt the bed dip beneath her knees. She had tried to turn her head, but John had held it firmly in place, her mouth still accomodating his hard dick. She felt hands run over her shapely arse, and two fingers rub over her tingling clit and sopping wet cunt. "You dirty little bitch", Grace heard Mark say, in a teasing tone, and felt his full length pump inside her willing pussy. She nearly came immediately, as his perfect dick speared her tight hole, as she sucked his friend's cock. Two cocks at once, she thought. I really am a dirty little bitch. Grace surprised herself at how turned on she was getting at being roasted by two cocks, and calling herself a dirty bitch. John was writhing beneath her, and her brother's hard meat was pounding her tight pussy. Grace had never done this before, and she guessed it was the best experience she would ever have.
Mark watched as his meat pumped his little sister's pussy, she was making little "mmmm" noises, but they were muffled by John's cock pumping her mouth. He had often dreamed of making a filthy slut take two cocks at once, but he had never dreamed it would be his own little Gracie. Fuck, she was hot.
Mark pulled out of her sticky cunt, and guided his cock upwards to nudge her tight arsehole. He was sure she had never been fucked up the arse before, and he intended to take her arse virginity. He was surprised Grace didn't object. Instead she arched her back, offering her arse up to him. Mark eased his cock into her arsehole. It was perfectly tight, and twitched as he entered, massaging his cock. He started to push in and out slowly, then reached forwards and pulled her mouth from John's cock by her hair. "Do you like your brother's cock up your arse, Grace", he demanded, looking at his horny little sister writhe. "Yes, Oh Mark...." she sighed as he pumped her harder. Mark held her up, so she was almost kneeling upright, and motioned for John to slip between her legs.
John slid between her legs, half in shock at the scene that unfolded. He was helping Mark fuck his sister! Still, the appeal of Grace's sticky pussy was not lost on him, and, now in position, he held his cock and guided it into Grace's pussy as Mark lowered her back into doggy position. Grace let out a moan of appreciation." Fuck me", she begged, clearly lost in the moment "fuck me hard".
Her pussy was still tight, and John could feel the movement of Mark's cock in her arse hole. He began thrusting upwards, watching as Grace flushed redder as she was ravaged by the two cocks pumping into her. He reached up and tweaked her nipples, ramming his cock in as hard as he could.
Grace began trembling as John's hands stimulated her erect nipples, and his pubic bone ground against her clit.The feeling of two hard dicks pumping in and out of her like pistons was like nothing she had ever experienced. She listened to her brother mutter "dirty bitch", and knew he was close to cumming.She looked down at John, his face contorting as he pushed deep into her sticky cunt.The two hard dicks spearing her was too much, and she felt her pussy start to spasm. She let out a cry, and felt herself crash to the most powerful orgasm she had ever had.
John could take no more. The sight of Grace writhing on top of him tipped him over the edge, and he released his hot spunk, bucking and pushing in her pussy harder, filling her with his sticky cum.
Mark watched as Grace came, and then made his friend cum. He rammed in harder and harder, until he felt himself explode, his cock spraying his dirty little sister's arsehole with his thick cum.
He slid backwards, from her tight little arsehole, and grinned at John. There little plan had worked...........