"Don't forget that you're supposed to babysit for us this Saturday." Patrick Young said into the phone as he stared out of his office window.
"I haven't forgotten -- don't worry." Matthew Talbot assured his brother-in-law.
"Good! Thanks, Matt. It's Keri's birthday and I'm taking her out to celebrate." Patrick explained.
Matthew nodded. "How old is she turning... twenty-seven?"
"Don't rush it... she'll be twenty-six." Patrick said laughing "And don't you dare give her a hard time about her age -- you're only a few years younger."
"A few?" Matthew shot back "I'm still only twenty-one. I'm not that old!"
"Okay... so if you could show up around six-thirty that would be great." Patrick said.
"Sure, no problem." Matthew said as he drank a soda and glanced at the computer screen in front of him.
"I'll see you Saturday, Matt. Bye for now."
Matthew hung up the phone and smiled. His thoughts drifted to his sister and he opened a folder on his hard drive that contained photos he'd taken of her during his birthday party eight months previous. That day Keri had worn a tight t-shirt and short skirt, and Matt found it nearly impossible to keep his eyes off of her. Matt's favourite photo from that day was one of her sitting on a patio chair. Her skirt had ridden up to expose her tanned legs. His sister was smiling as she talked with her mother and he loved how her dark brown hair fell around her shoulders. He could see that she was peering out of the corner of her eye as he took the photo. Her brown eyes had met his a few momemnts later and he had wondered if she realized how attractive he found her. Matthew could feel his cock harden in his jeans and he opened another photo. This one was of his sister in the kitchen talking with their father. Her nipples were hard and pushed against the thin cotton of her t-shirt. Ever since Matthew had been a teenager he had been mesmerized by his sister's full breasts. Keri was slightly shorter than 5'4", and thin. Her small frame made her C-cup breasts seem larger than they actually were, and more times than none when Matthew was around her he had to force himself to look at her face as they talked. Matthew unzipped his jeans and pulled his hard cock out. Stroking it, he stared at the photo of his sister he imagined what she might look like naked and how her body must feel.
"Keri's still getting ready. She always takes forever." Patrick said as he greeted Matthew at the door that Saturday night.
Matthew nodded and sat down. "Typical woman, I suppose."
"Hey, I heard that!"
Matthew and Patrick jerked their heads around to see Keri standing behind them grinning. Matthew felt his heart begin to race when he saw his sister. She was wearing a black dress that came down to just above her knees. The front had a scoop neck with spaghetti straps, and as he watched his sister walk towards the kitchen table he surmised that she was braless.
"Barry's asleep. He'll probably sleep all night, but you should go check on him occasionally." his sister said as she deposited make-up in her purse and ran her fingers through her dark hair.
Matthew nodded and gave a vacant stare at his sister's chest. He noticed that as she bent over the front of her dress fell away and he could easily see the curves of her large round breasts. They jiggled slightly with her movements and he felt his cock jump to life. Matthew raised his eyes up to Keri's face and found her gaze meeting his. She gave him a warm smile and slung the strap of her purse over her shoulder.
"You can sleep on the sofabed in the den downstairs. I made it earlier. We'll be late, so don't wait up for us." his sister said as she clutched his arm and kissed his cheek.
Matthew grunted a reply and relished the feeling of Keri's breast pressing into his arm. It felt firm and big, and he wished that just for once he could feel it.
He stood at the door chatting with Keri and Patrick while they waited for their taxi to arrive, then saw them off. Once they had left he went into the livingroom and turned the tv on. He sat on the couch and flipped through the channels, but his hard cock distracted him and his thoughts eventually drifted back to Keri and how she looked in the dress she was wearing.
A few hours later Matthew began to get sleepy. He checked on his nephew then went down to the den to go to bed. He pulled his jeans on and got into bed wearing a t-shirt and boxers. Close to two hours later he was awoken by the sound of a car in the yard, then laughter. Startled, he jumped out of bed and raced upstairs to the back door where he discovered his sister and Patrick coming in the house. Patrick was obviously drunk and Keri looked at her brother and gave a hearty laugh. She was surprised to see him standing there half-undressed and smirked as she ran her eyes up and down his muscular body. For an instant she felt a rush of lust, but pushed the feeling aside out of guilt and confusion, given that the cause of it was her brother.
"He had a little too much to drink, I guess. Can you help me get him to bed?" she asked.
Matthew felt awkward standing there in just his boxers and a t-shirt but managed to nod. "Just let me get a pair of pants on."
"Don't worry about it." she said as she shook her head "It won't take long, and besides, I've seen you in shorts plenty of times, this is no different."
Matthew gave a feeble smile and walked over to his sister and brother-in-law. He threw Patrick's arm around his shoulder then wrapped his own arm around Patrick in an effort to support him.
"I better help." his sister said as she stood on the other side and helped support her husband.
Patrick was mumbling and laughing to himself as the siblings began helping him upstairs. He was slightly taller than Matthew and they had a hard time maneuvering him. As Keri pulled her husband to her Matthew could feel her left breast brushing against the back of his hand. He slipped it down slightly to avoid any more contact, but as Patrick moved Keri had to hold him tighter against him. As they ascended the stairs Keri's breast was now pressing against her brother's hand. It felt firm and round. Matthew felt his cock twitching and was afraid Keri would notice the lump in his boxers.
"There...!" Keri exclaimed as they deposited Patrick onto the bed and she began taking his shirt off.
Matthew noticed the smirk on his sister's face. "Do you want to take his pants off, or should I?" she asked.
Matthew shook his head. "No way -- you do it."
Keri laughed as she unzipped Patrick's pants and tugged at them. Matthew watched as Keri crouched over her husband to pull his trousers down towards his feet. As she bent over Matthew realized that he now had an even better view down the front of her dress than he had earlier at the kitchen table. Her breasts swayed with her every move and Matthew felt himself getting harder. Keri glanced up at her brother's boxers and smiled upon noticing the obvious tent.
"There... now hopefully he'll sleep the rest of the night." Keri said as she slid off the bed and pulled a blanket over Patrick.
Matthew nodded and tried to conceal his erection with his hands.
"I don't feel like going to bed just yet. Want to stay up for a while?" she asked him.
"Sure." he replied, feeling shy "I'll go put some pants on."
Keri shook her head "Don't bother. I think you look kinda cute in those boxers. Besides, I'm changing too."
Before Matthew could reply his sister had turned her back to him and slipped her dress down. He stared at her bare back as she reached for the shirt on the bed that Patrick had been wearing and put it on. He could make out the curve of her right breast as she leaned over in the dim light of the bedroom and he reached down to try to adjust his hard cock so it wasn't as noticable. He moved closer to the door and waited for Keri to finish changing.
"How do I look?" she asked as she approached him a few minutes later.
Matthew looked his sister over. She had only buttoned the last few buttons towards the bottom of the shirt so he was showing a good amount of cleavage. "Okay..." he muttered, afraid to say much.
Keri approached him and placed her hands above the waistband of his boxers. She pressed herself against him and he felt his cock rubbing against her. "Just okay...?" she asked "Judging from how hard you are I'd bet it's better than okay." She gave him a foxy smile.
Matthew felt himself blush and tried to break the embrace, but Keri pushed him gently against the wall and pressed herself on him again. He felt her leg slip between his and her breasts on his chest.
"It's okay. I'm flattered." she said in a whisper and kissed his cheek.
As she spoke Patrick began stirring and mumbling in his sleep. The siblings nervously turned to him then looked back at one-another.
Keri turned out the light on the nightstand and took hold of her brother's hand and brought him into the hall then shut the door.
"We've got some wine left in the fridge. Want some?" she asked Matthew.
Matthew shook his head and followed his sister downstairs to the kitchen. He watched as she looked around the fridge then poured herself a glass of wine. She stood next to him, leaning against the counter as she took a sip. He felt the heat of her as her hip pressed against him and his cock jumped back to life. Keri glanced down towards his crotch as she took another drink of wine and smiled to herself. She felt her clit jump and she began getting wet. She gulped down the last bit of wine and sat the glass on the counter. Turning to him she ran her soft hand over his taught stomach and looked up into his eyes and smiled. She leaned against him so she could feel his hard cock rubbing over her stomach.
"I love making you hard... it feels so naughty." she said as she rested her chin on his shoulder.
"Huh...? he exclaimed as he pushed her away gently by her shoulders and looked at her in surprise.
Keri laughed. "I know this isn't the first time you've gotten hard because of me, Matt. Don't you think that I knew all the times you've stared at my boobs over the years...?"
Feeling ashamed, Matthew pushed his sister away and turned away from her gaze.
"Hey... it's okay..." she said as she ran her hand down his back to reassure him. She wrapped her arms tight around him and pressed her breasts into his back "look at me, Matt. It's okay." She slowly spun him around to face her again.
Matthew tried to force a smile, then stared at the floor. His sister's hands were soft and warm on him and they only caused his cock to twitch. He felt Keri's hand slip under his t-shirt and over his stomach. She smiled as she looked down at the larger tent in his boxers than was there a few minutes previous. Before he could open his mouth to speak she had taken hold of his hard cock through his underwear and was squeezing it. She felt how thick he was and how it twitched in her hand and she got even wetter.
"Oh my, Matt... you're bigger than I expected." she breathed.
Matthew gave his sister a shocked look, but was unable to move as she continued to fondle him. She cupped his heavy balls and smiled up at him.
"Can I see it?" she asked, tugging at the elastic of his boxers.
"Geez, Keri, I don't know..." he replied.
