Mary cleaned herself thoroughly after we got home, inside and out. The next day I took her to a free clinic so she could get on various forms of medications to prevent STD's including HIV. She took one pill there in case the guys raw dogging her the night before had exposed her to it. On the way home, looking at a text, she asked, "Do we have any plans tonight?"
"Mmm," I said, "yes. Why do you ask?"
"Sara my sister-in-law invited us over."
"That's odd," I said. Mary was generally estranged from her brother. Jerry was two years older and had apparently been awful to her when they were both teens. Sara was his second wife, a former cheerleader Mary's age with big tits and a narrow ass. "What time?"
"She didn't say."
"See if it can be something early so we can still do something after."
An uber dropped us off at Mary's brother's house at about 5:00. I assumed we'd have time to go change before we went "out out." She didn't know that the invitation had been my doing or what I had planned for her.
Jerry's house was dark and small. Both he and Sara drank and smoked like fish and chimneys respectively. I was pretty certain they'd started before we got there and also did some other substance or substances because they were pretty high. Jerry was decidedly fat with a beard and a kind of greasy demeanor, a good ole boy wearing jeans, a t-shirt and a ball cap. Sara was overly skinny and short, making her boobs look huge on her frame. She had brown hair pulled back in a clip. Mary and I were dressed casual, both wearing t-shirts and jeans. Mary had her customary blonde bob, of course.
Mary's brother and sister-in-law were already pretty altered and Mary and I didn't hesitate to join in. Meanwhile, I made certain that Mary was keeping up with me as I drank since I could hold my liquor better. It went surprisingly well. Jerry and Sara were entertaining, in part because they were high, and we got some good social time in. They had four kids between them, all of whom were out of the house, at college or just gone for the night.
The room had one couch and one easy chair. We'd been drinking from a central coffee table and moving as it seemed appropriate. A couple of hours in, Mary was sitting between her brother and his wife when Jerry stretched his arms over his head, put both of them on the back of the couch and turned to his sister and said, "So I understand you're going to give me a blowjob." The conversation stopped and Sara giggled. Mary looked at her brother questioningly, like she was trying to see the joke, then looked at me.
I smirked. "Let's start with a little foreplay," I said, staring straight at Mary. "Show 'em your tits," I said seriously, no joking in my voice. Mary just stared at me, her mouth open. "You know the drill," I said patiently. "Take off your shirt and bra." Mary looked first at her brother, then her sister-in-law, then back to me. The married couple on either side of her just smiled devilishly while I smirked.
"Here, I'll do it too," Sara said helpfully, and pulled off her own t-shirt to reveal a black bra full of breasts. Then she reached over and started "helping" Mary get her shirt off. Mary was slow but pulled it off, revealing her own white bra. She was still staring, open-mouthed as Sara reached behind her back and unsnapped the hooks on Mary's bra. "Now do me," Sara said, turning her back to her sister-in-law. Mary finally broke her gaze with me and looked over to unsnap the smaller woman's bra strap. Both women pulled their bras off their chests, Sara quickly, smiling, Mary slowly, a look of dread on her face.
"I think mine are bigger," Sara said, shimmying her shoulders to make her breasts wiggle, then holding one up to Mary's. Then she casually reached her left hand to Mary's left breast and started kneading it. "Oh, these are soft," she said. "Jerry, feel your sister's tits." Jerry did just that, his fat callused right hand grabbing his sister's bare breast. He barely started groping it before he leaned in and started sucking Mary's nipple. That seemed to do it. Mary finally relaxed, eyes closing as her brother sucked her tit. I thought Sara might join in but she was just watching her husband suck his sister's tit and Mary's face as she bit her lip, her brow furrowed.
Jerry was working with his pants with his hands as he kept sucking then he pulled his cock out. When he sat up from Mary's nipple, she opened her eyes. She didn't resist as her brother gently grabbed the back of her head and pulled it down to his lap. Mary didn't even look at me, just closed her eyes and opened her mouth, letting her brother pull her down on him. Mary started sucking Jerry's cock, which wasn't big, partly because he was fat, as he guided her head with his hand. Sara was rapt, watching her husband get sucked by his sister, a woman much taller than her and a blonde. Mary worked her hand into her jeans, getting to her clit while she sucked Jerry's cock, her head bobbing up and down.
"Let's take a look at what she's got in these jeans," Sara said brightly and pulled on Mary's waistband. Mary undid her jeans so that Sara could pull them down and off, her white panties coming with them, revealing her big, white ass. Sara called it out, her tone still bright. "Your sister has a big ass." That was obvious. Then Sara spanked one cheek. Mary didn't respond, just kept sucking, as Sara pulled Mary's jeans down and completely off her shapely legs. The smaller girl unceremoniously stuck a finger in my wife's pussy. "Ohh, Jerry," Sara cooed. "She's wet. She likes sucking her brother. Don't you, slut?" and she spanked Mary's ass again.
Jerry pulled Mary's head off his cock and then let go. Mary didn't need to be told but, now naked, turned around on the couch so her ass was facing her brother. Her mouth was open and her eyes closed. Jerry got on his knees behind his sister then pushed her ass down so she lowered to one knee to the carpet and shoved the other under the back pillows. Then the fat pig lined his cock up with his sister's pussy lips and, pulling on her hips, penetrated her. Mary came immediately.
