For a long moment, Patricia just looked at Jennifer, waiting for her to start laughing or at least smirk from not being able to keep a straight face. Neither of those things happened.
"What?" she finally said.
"I've been fucking Shawn." Jennifer repeated.
"Holy shit, you're serious." Patricia said.
Jennifer nodded.
"How long has this been going on?"
"Three months now." Jennifer said.
"Three months?!" Patricia exclaimed. "And you're just telling me about this now?"
"Well it wasn't something I could just blurt out in a text message or in a phone call. This was something I had to tell you in person." Jennifer said.
"Wait, wait, wait." Chaz said, looking at Shawn wide eyed. "You've been fucking your mom for the last three months? You're messing with me, right?"
"Nope," Shawn said, "I swear to god, mom and I have been going at it at least 3 times a week."
"Holy shit man," Chaz said, "I'm speechless. I guess I always realized our moms were pretty hot, but I don't think I've ever thought of my mom like that."
"Hell, neither did I, until I came home one day and caught a glimpse of mom through the bedroom door." Shawn said. He then proceeded to tell Chaz everything. Accidentally catching sight of Jennifer after her shower, spying on her, her catching him masturbating, the masturbation session with Deborah, writing down his sexual fantasies about his mother, having her read them, reading her fantasies about him, having sex with her and Deborah, and the almost daily sessions with his mother since then.
"So how is it?"
"Oh my god, sis. It's fucking amazing." Jennifer said, "The kid's hung like his father."
"You gotta tell me how this all started." Patricia said.
So Jennifer told Patricia everything Shawn had told Chaz, only from her perspective.
"Wait, wait, wait," Patricia said, "You've been having sex with your therapist too? Actually, does your therapist know about me? About us?"
"God no," Jennifer said, "I mean she knows about you, but she doesn't know about us. Hell, I haven't even told Shawn. Plus you haven't seen my therapist. She's fucking gorgeous and has the most amazing tits I've ever seen."
"How big are we talking?"
"Like out to here." Shawn said, over exaggerating the size of Deborah's tits with his hands. "Okay, maybe not that big. But big."
"More than a handful?" Chaz asked.
"Oh yeah," Shawn said, "Definitely more than a handful. Double D's if I had to guess."
"Damn Shawn," Chaz said, "How come you never told me about this before?"
"Well it's not exactly casual conversation," Shawn said, "It's not like I can just casually text you 'Oh, by the way, I'm fucking my mom', you know."
"I should be mad," Patricia said, "But considering we've been having sex for years behind everyone's back, it'd be extremely hypocritical."
"No need to be mad," Jennifer said, "After all, you're my sister, and we've always shared everything..."
"Wait... are you saying...?" Patricia asked, then saw the look in her twin sister's eyes. "You are. Oh my god, sis, I love you."
Jennifer leaned forward and kissed her sister, "So here's what I have in mind..."
Later that night after a dinner where Patricia and Chaz were trying not to look at Jennifer and Shawn any differently than they had before, eventually everyone headed off to bed. Jennifer and Patricia in Jennifer's room, Shawn in his room, and Chaz next door to Shawn in what was originally the guest bedroom but was unofficially Chaz's room.
About an hour after everyone had gone to bed Jennifer and Patricia put Jennifer's plan into motion.
Shawn heard the door to his room open, "What kept you?" he asked, turning on the light revealing Patricia, who was naked as the day she was born.
"Wait, you knew about this?" Patricia said.
Shawn smiled. "Of course Aunt Patty. Did you really think mom would plan this without telling me about it?"
Patricia sat down on the edge of Shawn's bed, "So I'm guessing you told Chaz."
Shawn nodded, "Yep, told him all the gory details, just like I'm sure mom told you everything."
"I should have known." Patricia said, shaking her head and smirking.
"You really are the mirror image of mom." Shawn said, looking at his aunt's body, reaching out to gently squeeze one of his aunt's tits.
The two leaned in to share a kiss, as Patricia threw back Shawn's blanket to reveal he was naked underneath.
"All ready for me I see." Patricia said as they broke the kiss, she looked at his erect cock.
"I've been waiting all day for this. Hell, I've been waiting all week for this ever since mom suggested it." Shawn said.
"Good lord, your mother wasn't kidding, that is impressive."
She reached out and grabbed his cock, gently stroking it up and down.
"Mom said it's been a while since you've been with a man." Shawn said.
Since Patricia couldn't sleep with Jennifer as often as she wanted, she did start dating again when she felt ready for it. Out of the small handful of men she dated she only slept with two of them. However, neither them nor any of her other dates had turned into anything serious.
"Is that all she said?" Patricia asked.
"Yeah," Shawn said, reaching between his aunt's legs. Patricia spread her legs, allowing Shawn unrestricted access to her pussy. "That you dated a few times after uncle Don died, but that was it."
"That doesn't mean I've forgotten what to do with this." she said, giving Shawn's cock a squeeze as she slid into bed with him. "So I'll tell you what. I'm gonna suck your cock. See if I'm as good as your mother."
She kissed Shawn one more time before kissing her way down his body, until she reached his throbbing cock. She licked the length of it, from his abdomen to the head, swirled her tongue around the head a couple of times, and then engulfed his cock in her warm mouth. It was a new sensation for him as Patricia did things with her tongue that neither his mother or Deborah had done. She swirled her tongue around his cock when it was in her mouth, almost like she was trying to wrap her tongue around it, and teased him as she occasionally stopped to lick the head of his cock, or to literally lick every inch of his throbbing cock, from his balls to the head.
"Oh my god, Aunt Patty," he moaned "Your tongue is amazing."
Patricia didn't say anything as she was still busy stuffing as much of Shawn's cock into her mouth as she could. It may have been years since she had a cock in her mouth, but she hadn't forgotten what her husband liked, and despite all her times with Jennifer, always wanted to get her hands (and other body parts) on a nice hard cock again. Now she finally had one, and it just happened to be attached to her nephew.
Shawn watched Patricia lick and suck his cock, and he knew it wouldn't be long before he filled his aunt's mouth with a generous load of cum. She looked up at him and smiled as she took his cock out of her mouth and licked the head again. "You close baby?" she asked.
"Oh yeah, Aunt Patty," he said, "So close."
Patricia swallowed his cock again and after another minute or so of sucking and licking him, Shawn grabbed the back of her head.
"Oh fuck Aunt Patty, I'm cumming!"
His cock throbbed in her mouth and seconds later Patricia's mouth was filled with a huge load of cum. She tried to swallow all her nephew was giving her, but there was just so much, it leaked out of the sides of her mouth and down over her hand, which was wrapped around the base of Shawn's spasming cock. Shawn was grunting and panting in orgasmic pleasure. He finally let go of her, and Patricia came up for air, swallowing a mouthful of cum.
"Jesus, your mother wasn't kidding." she gasped, "You cum like a goddamn faucet."
She licked her fingers clean and Shawn offered her some tissues to wipe her face clean. After she had cleaned up she leaned in to kiss him again, and Shawn flipped her over, so he was on top.
"You gonna fuck your Aunt Patty?" she asked, when they broke the kiss.
"Not yet," he said, licking two of his fingers, and after a moment, he offered her his fingers. She eagerly opened her mouth and sucked his fingers into her mouth. Shawn pulled them free after a few seconds and reached between her legs, sliding two fingers inside her.
Although Shawn could usually cum twice when he fucked his mother, it usually took a while before he had his second orgasm. So he would coax an orgasm or two out of his mother by fingering or eating her out (sometimes both) before fucking her or getting a blowjob. He kept that same mentality with his aunt.
Patricia moaned as Shawn's fingers entered her, and he started slowly started finger fucking her, leaning down to suck on her tits.
"Oh my god," she moaned, "That's it baby. She did say you... fuck that's good... were a natural. Yes, just like that, holy fuck... that's the spot, right there."