Overnight at My Sister-in-Law's

He picked up the sonogram and sighed. He had been wondering if this day might come since the morning after his sister-in-law fucked him. She and his wife had pretended that it never happened, and he had gone along, pretending that he didn't realize what had happened.

Tamara was his wife's twin sister. In every respect, they were exactly alike, including the way they wore their hair, cut at an angle just off their shoulders. Except for one thing. And it was a dead giveaway.

Megyn shaved her pussy. Her sister didn't. They must have overlooked this detail. Or didn't think to ask each other. Otherwise, they probably would have gotten away with it.

***

When she came into dark room, climbed on top of him, put her finger on his lips, and said "Shhhhh," he thought it was his wife, horny from the conversation the three of them had over after dinner whiskeys. She just wanted to be quiet because noise carried in their small modern home. And she didn't want to disturb her sister.

When she went down on him, he still had no inkling anything was awry. He got hard quickly and she crawled back over his chest. He fondled her tits under the silky teddy that rode above her hips. With one hand she steadied his cock, with the other she pulled aside her panties. She positioned the head of his cock at her wet lips, and moved it back and forth across her slit.

It was then he realized this wasn't his wife. Her hair created a shocking stimulus as it electrified the head of his penis. Startled, his body twitched, he grunted and was about to speak, when she put her hand over his mouth. "Shhhh," she said, as she lowered herself fully on to his cock and paused, suppressing a groan herself.

It was a quickie, just like he and his wife sometimes enjoyed. Usually they took longer. More foreplay, more positions, more getting her ready, and then making sure that she came before he did. But sometimes she liked it fast, and she didn't really care if she came, especially after they had been drinking. She knew he liked it that way, too. It was a welcome relief after a pent up day and evening, especially with the sexual tension in their after-dinner conversation.

She rode him hard and fast as he fondled her tits, pinched her nipples, and then grabbed her hips as she put her hands on his chest and pounded down on him. He came quickly with what felt like a big blast of hot cum. She shuddered at the same time and collapsed on top of him.

She lingered for a moment like that, then rolled off of him, went out to the hall, and the bathroom light came on.

A few minutes later, his wife came back to bed, in her teddy, without panties, and a moist pussy. "Just wanted to wash up," she said, as she nuzzled the back of his neck and spooned him.

His mind was reeling. What the fuck had just happened? He was still a little fuzzy from the whiskey, too. He started to try to speak, but his wife put her finger to his lips. "Shhhh," she said.

***

When he woke up the next morning, they were cheerfully chattering at the breakfast table as if nothing were different. "Morning sleepyhead," his wife said. "Coffee." She stood up and kissed him and gestured to the empty seat at the table.

Her sister smiled abstractly at him and turned her attention back to the paper. "We've got an Uber on the way to take Tamara to the airport," Megyn said, "and I'm headed to work."

Tamara folder the paper and stood behind her sister. She gave him a quick hug. She looked at her phone. "My Uber is here," she said. "See you next time."

They both went out the front door with a quick wave in his direction. "I'll be home by six," his wife said. "Dinner?"

"I'll make dinner," he said and slumped into a chair at the table. He shook his head, trying to clear his mind, and took a slug of coffee.

He thought about the night before and realized he was getting a hard-on.

***

They had been sitting around the living room, sipping whiskey, and having a lively conversation about politics, when in a quiet moment, Tamara said, "I'm thinking of having a baby."

"Thinking?" Megyn said. "It takes more than that."

"Who's the lucky guy?" he asked, trying to make it sound jocular. He had always thought Tamara was probably a lesbian. But she was so private, she never let them so far into her private life.

"I'm doing research on sperm banks," she said. "It's a little cold and anonymous."

"I know lots of guys who would stand in line for that," he said, immediately wondering if he was going too far. And then he went a little further. "In fact, I've been happily standing in line for that for seven years," he said, rubbing Megyn's thigh and leaning over to give her a kiss and squeeze her breast quickly.

She punched his arm. "You're so bad," she said with a laugh.

Tamara smiled at him with forbearance or forgiveness or maybe even a bit of curiosity and pleasure. He couldn't tell. He'd always had the hots for her and more than a little wishful thinking. She was a mirror image of his wife. He couldn't help but be turned on by her. And more than occasionally he fantasized about a threesome with the two of them.

But Tamara was cool as a cucumber, unlike Megyn, who wore her emotions and desires on her sleeve. Megyn would not be doing research, he thought. She would be getting down to business. She was decisive. And she had decided not to have children.

The conversation moved on. He excused himself after a while and went to bed. The twin sisters stayed up talking and drinking, as they often did, their voices soft murmuring, rising animatedly from time to time, punctuated by the clink of the bottle and glasses.

He dozed off, fantasizing, as he had more than a few times before, what Tamara might be like in bed.

***

He sighed as he looked at the sonogram wondering what was to come.

"This changes everything," he thought.

He briefly considered canceling his meetings and waiting for Tamara to come home to talk it over. But he decided there was time for all that. She had certainly taken her time. And Megyn had never said a thing to let on that it wasn't her that fucked him that night.

"Love you two," he wrote on Tamara's note. "XXOO."

***

When he got home late that night, there was a bottle of Japanese whiskey on the kitchen table in a pool of light. Beside it was a note. "Welcome home! XXOO."

He was nursing a whiskey when he heard a rustling coming from their bedroom, and then shuffling feet, and the skitter of claws on the wood parquet floor. Blanca was first to appear, eagerly nuzzling his outstretched hand. Megyn was close behind.

"Hello," she said, wiping sleep from her eyes. "How was your day?"

"Too long," he said. "How are you?"

"Good, good," she replied.

She took the tumbler of whiskey from his hand, and took a good swig. She straddled his legs, bent to give him a deep, long kiss, and then pressed his head between her breasts. She ground her pussy against his crotch, which instantly hardened.

Her nightie slipped open.

She unbuckled his belt, unzipped his jeans, and pulled out his cock. She pulled her panties to the side and rubbed her wet labia along the length of his shaft.

"Megyn," he said.

She pressed her fingers against his lips.

"Shhhh," she said, as she positioned his cock and sank down on to it with a sigh.