Jacob was sitting on the couch watching TV when Betty walked by from the kitchen. She stopped in front of the couch and asked playfully "What are you watching?"
Jacob replied "Well, now I'm watching your phat ass!"
Betty was wearing a small camisole top and a pair of Soffe shorts, with her ass cheeks spilling out the bottom. Jacob leaned forward and smacked Betty on the ass causing her to lurch forward, her cheeks clapping back and forth gathering up more of the fabric of her shorts in between her ass.
"Hey!" she said, "Stop it, I'm gonna lose my shorts if you're not careful."
Jacob grinned, but he turned his attention back to the TV, giving her the chance to walk away.
The two were alone in the house, and as such, were taking the opportunity to dress a little skimpier than usual. Jacob was wearing a pair of boxer briefs and nothing else. Betty's top and shorts were really all she had on as well.
Betty made her way back into the kitchen, and a few minutes later she returned with a plate of brownies. She sat down on the couch next to Jacob, setting the plate on the coffee table.
"What you got there sis"? Jacob asked,
"Oh, I made some special brownies, want one"? Betty asked
"Sure" Jacob replied...
Jacob gobbled down the first brownie,
"Wow, these are amazing Betty, can I have another one?" Jacob asked
Betty giggled a bit and replied
"Of course baby bro, you can have whatever you want"!
Jacob started to grab another brownie but paused for a second
Jacob: "What makes these brownies so special"?
Betty replied, "You'll see in a bit."
Jacob shrugged, grabbed another brownie, and resumed watching TV. A half hour or so later, Jacob started to feel strange everything was moving really slowly, Jacob turned to his sister slurring his words a bit
Jacob asked, "Sis did you put something in the brownies, they are really good."
Betty smiled at her brother
"You're so adorable Jacob, and yes I put something special in the brownies."
"Oh" was the only response Jacob could muster.
"But don't worry brother you've had my special brownies before, remember last year on 4/20"?
Betty looked at Jacob waiting for him to realize what was so special about the brownies. Jacob's eyes got big as he figured it out...
"Weed brownies!" Jacob yelled out and laughed.
Jacob playfully wrapped his arms around his sister's waist and, with one motion pulled Betty onto his lap and started tickling Betty under her arms. Betty's shirt and shorts were riding up exposing more of her smooth skin and tight stomach, Jacob was able to slide his hands all the way up her side and tickle her. Betty squirmed around trying to get away from Jacob's hands. Jacob stopped tickling Betty, and instead pulled his sister's body closer to him and just hugged her.
"Thanks, Betty," he said quietly, "I'm really glad we get to hang out today."
"Me too," Betty said softly.
After a few minutes of hugging and just enjoying the contact, Betty remained on Jacob's lap and they continued watching TV together. Both Betty and Jacob were feeling the effects of the special brownies. As Betty sat on Jacob's lap he could feel her thighs pressed against his, the skin-on-skin contact was arousing to Jacob. As they watched TV, Betty leaned back resting on Jacob's chest, Jacob rested his hands on top of Betty's and gained enough courage to slowly rub Betty's inner thighs. Betty spread her legs allowing Jacob more access for his hands to roam freely. Jacob was turned on and could feel blood rushing to his dick, eventually, Betty noticed something poking her in the butt.
"Ooooh, I guess you're enjoying having me on your lap!" she said.
She was giggling as she wiggled her butt back and forth against his growing erection. Jacob couldn't take any more, his hands moved up from Betty's thighs and began to caress her breasts through her cami, his thumbs rubbing against her nipples causing them to harden. Betty's pussy was getting wet as her brother's dick grew longer and harder, she could feel his breath on her neck, his hands were kneading her breasts and his lips were kissing her neck and ears.
Jacob reached under Betty's shirt pulled it off over her head and tossed it aside. Jacob could see Betty's perky, firm tits. Her nipples were hard, and her areolas were large, and her skin was soft. His hands resumed caressing her breast.
"You know," Jacob said, "these tits are just soooo fucking beautiful."
Jacob kissed his sister's neck and then whispered into her ear
"And I bet they taste good too."
Jacob began kissing and licking his way down his sister's neck and back, as he went further and further down her back, he slipped his right hand under the waistband of her shorts and began stroking her clit. Betty pushed Jacob's hand away
"I don't want your fingers in me again, I want what's poking me in my ass." She said.
Jacob slid his hands down her shorts and slipped them off her body, throwing them across the room. Jacob then grabbed the waistband of his boxers and quickly shoved them off his hips and onto the floor.
Betty looked at her brother's cock. It was about 8 inches long and thick, the head was pulsating back and forth the tip was engorged, and it was sticking straight up, with precum pulsating from the top. Betty licked her lips and smiled.