[Part 1](https://www.reddit.com/r/eroticliterature/comments/grxnn0/my_wifes_sister_mf/?utm_medium=android_app&utm_source=share)
[Part 2](https://www.reddit.com/r/eroticliterature/comments/gxd0oq/my_wifes_sister_part_2_mf/?utm_medium=android_app&utm_source=share)
[Part 3](https://www.reddit.com/r/eroticliterature/comments/hjgsba/my_wifes_sister_part_3_mf/)
The rest of the trip, for the most part, was uneventful. Although the spark was re-lit that night, his wife, Sylvia, was still not very affectionate. And when Erick tried to initiate sex the next night, she whispered something about being tired and needing to get up early to finish packing and head back home. Adrianne remained aloof the rest of the time they were there. Erick knew his sister-in-law would soon visit his house like she always did. He couldn’t help but fantasize and build excitement. This new wake in libido had pushed his already high sex drive into overdrive.
It wasn’t long before she finally did visit. The first night she arrived went like most nights they cooked dinner for her, and they stayed up drinking and watching TV. As the drink seeped in, Adrianne became a lot more open and playful as the night went on. She was dressed in tiny shorts and a tight T-shirt with no bra. Erick couldn’t help but stare at her nice soft swaying tits; her nipples were incredibly hard. The girls sat in the love seat as Erick sat by himself on the couch. He watched as they began play arguing over some character on a show.
“He’s such a piece of shit, man; how can you stan for that dude?” Sylvia said the wine also lightening her spirit.
“Because he’s fine, and his girl did him dirty!” replied Adrianne getting very close to her sister.
“Get your big-ass tits out of my face,” Sylvia said playfully.
“Fuck you, they’re not that big; we’re pretty much the same size!”
“Bitch what?” Sylvia said, pushing her chest outward. She was also wearing a light tee, and her nipples were now showing as well.
“They’re about the same!” Adrianne said, squeezing her sister’s chest lightly and then squeezing her own. She frowned.
“See bitch! We do not have the same rack,” Sylvia said, now squishing her tits against Adrianne’s.
“We should let Erick decide who has the bigger tits,” Adrianne said, smiling at Erick.
Already flushed from the alcohol, he blushed and stammered, “uhh, look, it doesn’t matter who…”
Without flinching, Sylvia took off her shirt. Her nice round tits seemed swollen now. They sagged down from childbirth and breastfeeding, but they still looked amazing. And her nipples were not large, but they had a dark gradient surrounding the erect nipple, which seemed to get more erect as she took a deep breath and relaxed.
“Oh, okay bitch!” Adrianne replied playfully, quickly taking off her shirt.
No contest. Adrianne had the same-sized nipples, but they were on much larger breasts. Her nipples stood up much more erect, and although they sagged from their size and weight, they were sitting much more firm.
“Oh fuck” Erick whispered.
“See, look at these big tits,” Sylvia said, inspecting closely then grabbing one. “You always had the bigger tits; all of my boyfriends always tried to check you out in middle school.”
“A lot of good that did they never went out with me.”
“What do you think, honey? Doesn’t she have the most amazing rack?” Sylvia said, smiling at Erick.
Erick instantly knew this was a trap. He looked at the Tv. “They’re bigger, but I think your tits are better, baby. They have a nice shape. Smaller tits need love too.”
Sylvia smiled, walked over, and kissed him passionately. “Good answer.”
“Get a room, you two!”
“This is our house bitch!” Sylvia said playfully, now straddling him. “it’s not fair that we’re topless and you are still clothed.” She said, taking off Eric’s shirt. Even with his weight gain, he was still muscular, and he was now trembling with excitement.
“Ummm, okay, you guys are too much,” Adrianne said. Erick was trying to see if she was angry and really bothered by this or just teasing. He couldn’t concentrate because now Sylvia had begun to shove her tits into his face, and he just let his biology take over. Kissing and sucking all over her tits, he lost himself. Adrianne watched intently; she was already flushed from the wine, but seeing her sister make out with Eric made her blush a deeper red, and she gasped audibly as her breathing quickened. As they continued to kiss, Eric became more turned on and let go of inhibitions as he firmly pulled his wife closer to him and rubbed his big boner under her. Sylvia gasped, and her eyes widened as she felt how hard he was. She looked over at Adrianne, who was now biting her lip, squeezing her legs together, and lightly tugging on and pressing on her own chest.
“I know you love my titties, baby, but maybe you should check just to make sure you don’t like my sisters better,” said Sylvia. Adrianne was stunned but at this moment was so turned on that she slowly walked up to them and sat next to them. Eric closed his eyes and felt the warmth of his sisters-in-law’s proximity and the charged sexual energy of the air. Knowing she was watching intently, he began to really suck hard and loudly moan with pleasure as now Sylvia had a slow but forceful grinding motion on top of him. “Come here,” Sylvia moaned as she grabbed her sister’s hands and dragged her closer to them. She rested her hands on Eric’s chest, and Adrianne pushed her tits towards him.
He pulled away from Sylvia’s tits looked into her eyes while he caught his breath, “baby, are you sure? Are you sure it’s okay?”
Sylvia, instead of responding, grabbed Erics fondling hands and led them to Adrianne’s chest, where he squeezed a little but did not move anymore. Adrianne closed her eyes let a dirty moan escape her as she began to grind her tits in his hands. Sylvia drank in the scene. The heat of the room, the fact that her husband’s hands were on another woman’s chest, her sister’s chest, she felt angry yet incredibly turned on. Somewhere deep inside her, an animalistic switch turned off her rational mind, and she became overwhelmed with desire. She kissed him deeply, then her mouth worked her way into his neck and then his ear. “Yes, baby, it’s okay. Grab her titties, please.”
Eric, suspended in amazement, began to fondle Adrianne’s tits before he consciously weighed what was going on. Adrianne moaned with pleasure. His big hands growing more and more forceful, she opened her mouth and began gasping with pleasure, her panties getting extremely wet.
Sylvia, also flooding in her underwear, was trembling with excitement as she drank in the scene. She began to slowly take off his shorts, his massive boner jumping towards her face in excitement. “Suck on my sister’s titties, baby,” Sylvia said as she stared into his eyes and began drooling and nuzzling his hard cock. Adrianne pushed her tits right into his face and used one hand to dig into her shorts with slippery wetness; she dug deep.
“Are you sure?” Eric asked, sounding alarmed but turned on.
“Yes, baby, it’s okay. I know about you two together already.”
Silence hung in the room.
“I’m so sorry, baby,” Eric said.
“Yea, you better; I was so pissed,” Sylvia said, still sucking on his cock harder now. “But I was also extremely turned on.” Adrianne had stopped playing with herself and was staring at the wall in shame. Sylvia pulled her close to her and said, “It’s okay; I don’t know why but I really enjoyed seeing you with my husband.” As she said this, she pulled her into her face and gently began kissing. When younger, they had practiced kissing and kissed on dares but nothing like this. Eric became overwhelmed with desire. Sylvia pulled away from kissing and moved back towards Eric’s cock, “come down here and share it with me.” Adrianne reluctantly went down, and they began to share the cock between their mouths slowly at first. They kissed a bit more at the tip of his cock. Sylvia started to deep throating Erics cock. “He loves this,” she said as she grabbed Adrianne’s face forcefully forced the cock into her throat. “Oh baby,” she moaned. Adrianne became more comfortable deep-throating Sylvia came up to make with Eric and then shoved her tits. “Yes, baby, suck my husband’s cock!! You like that, don’t you daddy, you like my sister sucking your cock so deep. Oh, she’s such a good girl, aren’t you, sis.”
“yes, I’m a good girl.”
“She’s such a good daddy’s girl.”
“Yes, I’m such a good girl for daddy,” Adrianne replied between gasping and deep throating.
Eric was now furiously fingering Slyvia, and she began to cum.
Adrianne pulled back and said, “Oooh, sis are you going to let me try his cock.”
Adrianne let the orgasm pass by her and smiled down at her sister. “Oh yea, you haven’t had his cock in your tight pussy; oh my god, I want him to tear up your pussy,” she said, leaning over to kiss her sister. “But you’ll have to wait your turn.”
With that, she slipped her shorts off and began to straddle Eric. She adjusted him, so he was lying down completely, and Adrianne helped guide his cock into her. She came instantly as she sat all the way down. Her pussy clamped down his dick hard, and her orgasm squeezed his cock tight. “Get a taste of my sister’s pussy, daddy,” she said as she led Adrianne to straddle Eric’s face. Eric mumbled into Adrianne’s tight pussy, as she groaned with deep pleasure. Sylvia began riding Eric’s cock and began slapping her sister’s ass; she could see her convulse as Eric’s tongue brought her to orgasm and drenched his face. She couldn’t help it; she leaned over, taking Eric’s dick deeper, and began kissing her sister’s ass hole. Adrianne was in complete ecstasy. She felt a tongue in her pussy and a tongue in her asshole; she began to grind into Eric’s face. Her sister’s tongue began to fuck her asshole.
Eric felt suffocated but decided that if he had to go this way, he was totally fine with it. Sylvia became weak, and her legs started giving out. “Come, let me taste your pussy,” she said, pulling Adrianne off her husband. She slurped Adrianne’s pussy juices off of Eric’s face and came one more powerful time, completely drenching his cock. Adrianne quivering in anticipation, said, “let me taste yours,” she grabbed Erics cock and licked every bit of her sister off him.
“Are you ready to fuck your wife’s sister, daddy?” Sylvia said, gasping for breath entirely in a state of ecstasy. “Yes, baby,” he said out-breath but calmly. This is what they had missed for so long—his relaxed dark demeanor of being entirely in control and turning her on so profoundly. Eric grabbed Adrianne and laid her down, so her facing him. Sylvia took over, taking turns between kissing them and gently guiding his cock into her tight pussy. It was so tight. Eric had never experienced a pussy so tight she was so wet and excited she eagerly scooted her pussy closer. “Fuck her,” Sylvia said while forcefully kissing him. He began slow deep strokes that shook her to her very core. Sylvia could see the pleasure in her sister’s face and went down to kiss her. She climbed over and placed her pussy right in her sister’s face. Adrianne was so turned on she quickly lapped at her sister’s wet pussy. Eric was so overwhelmed he could not hold it anymore.
“Can I cum in your sister?” he said, gasping for breath.
“Yes? Please,” Adrianne pleaded.
Sylvia became highly turned on. But at the same time, this was not something she was ready to let go of. “No, daddy, that cum belongs to me.” She pulled out his cock and deep-throated it. She felt him convulse, and massive loads squirted into her. She could feel her sister cumming just under her, her pussy juices flooding her as she slurped up his cum. She began to choke but still held his cum on. She had a big mouthful and was in complete ecstasy. She maneuvered to face her sister and looked into her expectant eyes. She smiled as she moved in, kissed, and let his hot sticky load overflow into his sister’s mouth. They both nuzzled his cock. “We’ll work our way up into cream-pie-ing, my sis. For now, the only cream-pies belong to me,” she said, playfully kissing her sisters’ cum filled mouth.
Source: reddit.com/r/eroticliterature/comments/moajgk/my_wifes_sister_part_4_final_mff_incest_ss