For the next few days Jason walked around in a perpetual state of arousal after what had happened with he and his sister. He was excited about seeing her Friday night, but he also knew that since Tony would be there they would have to behave themselves. Still he was looking foreward to seeing her in that new black dress again.
Before he left for Lisa's and Tony's house Jason took a shower and shaved, then quickly drove over. Tony greeted him at the door and explained that Lisa was still upstairs getting ready, but would be down shortly. He and Jason talked until they heard approaching footsteps and Lisa walked into the room. She looked even more stunning than when Jason saw her the other day and Tony whistled at her.
"Damn, you look hot, honey." he said as he pulled her close and kissed her cheek.
"How do I look, Jason?" she said, flashing her brother a coy smile.
"Not bad for twenty-five." he said smiling.
"I just called a cab, and they'll be here in about ten minutes." Tony said.
"Don't wait up for us. Check on the baby a few times, but he should be okay. And if you get tired there's the fold-out couch downstairs in the rec-room." his sister said as she checked her make-up then grabbed her purse.
"I'll be okay. You guys just have a good time and don't worry about me. "I'll be sleeping here tonight downstairs, so don't worry about how late you come home." Jason said as he saw them off at the door.
Once Lisa and Tony had left Jason went in to watch tv while he did some homework. He made himself something to eat later then sat in the livingroom flipping through the channels searching for something to watch. Eventually around 11pm he was feeling tired and checked on his nephew then decided to go to bed. He went downstairs and pulled open the couch and grabbed a blanket. He hauled off his t-shirt then pulled his jeans down and crawled under the blanket, wearing only his boxers. His thoughts drifted back to his sister and what had transpired between them the past week. He could feel his cock growing in his boxers and hauled them down and began to stroke his hard cock. After a while sleep began to overtake Jason and he hauled his boxers up and rolled over.
A few hours later he was awoken by the sound of a car in the driveway and two car doors slamming shut. He heard voices and laughter, then the door to the house opening. Realizing it was just Lisa and Tony returning he rolled over then tried to get back to sleep. Then he heard a loud thud which sounded like something hitting the floor and he lept out of bed and ran upstairs.
He saw his sister standing there laughing and Tony on his hands and knees on the kitchen floor.
"He celebrated my birthday a little too much." Lisa said laughing as she stood over her husband.
"I'm not drunk occifer." Tony said with a smile as he clutched the kitchen table trying to stand up.
"Will you help me get him to bed?" Lisa said laughing.
Despite feeling somewhat uncomfortable at standing there in just his boxers Jason walked over to his brother-in-law and helped him stand up.
"You're the greatest, Jason. I love you, man." Tony slurred as he wobbled.
"Let's get him upstairs." Lisa said laughing.
Jason slung one of Tony's arms over his shoulder and his sister grabbed his other arm and they began making their way up the stairs to the bedroom. Once inside they hauled Tony over to the bed and practically threw him onto it. Lisa pulled the blankets and sheet back and began unbuttoning her husband's shirt.
"Help me get him undressed." she said to her brother as she tried to take Tony's shirt off.
Jason nodded at his sister as he watched her from the other side of the bed leaning over her drunken husband. From his vantage point Jason could see down the front of his sister's dress as the scoop neck fell away from her body. She was braless, and he could see her round breasts swaying with her movements. He felt his cock jump to life and was afraid that Lisa would notice. Lisa undid Tony's pants and looked up at her brother.
"Help me get these down." she said as she hauled on them.
Jason leaned over Tony and realized that he was able to stare straight down the front of his sister's dress now as she leaned over her husband. He had an even better view of her breasts as she struggled with Tony's pants. Jason's cock was so hard at this point that he knew there was no way his sister could not notice and he looked up at her and flashed her a nervous smile.
"Let's just get him to bed first." she said with a faint smile.
As they pulled Tony's pants down past his knees Jason noticed his brother-in-law's hard cock tenting out in his boxers, almost poking out of the opening. Lisa slowly reached up and adjusted her husband's hard cock so it was snaking down his left thigh.
"Oh, honey, ya, suck it for me." Tony mumbled as Lisa's hand moved him inside his boxers.
"Looks like I've made two cocks hard tonight." Lisa said as she winked at her brother and pulled the covers up over her husband "Let's get out of here and let him pass out."
Lisa walked around the bed and turned out the light as she left the room. Jason followed her, feeling his semi-hard cock sway as he walked, and felt very nervous about being around his sister. Lisa walked into the kitchen and opened the fridge and poured herself a glass of wine.
"Let's go sit down in the livingroom." she said to her brother, motioning with her head as she walked past him.
"Umm, let me go haul on a pair of pants first." Jason said as he looked down at himself.
"Oh, come on, no sense in being shy now, little brother. I kinda like the show, and besides, you owe me one." she said tugging at his hand.
Jason followed his sister into the livingroom and sat next to her on the sofa, curling one leg under the other in hopes of hiding his erection.
"You really like this dress, don't you?" Lisa said staring at the tent in her brother's lap as she took a sip of wine from the glass.
"Ya, it looks great on you." Jason said as he eyed her up.
