Jack never liked the holidays, especially because he never liked being with his wife's family. For her part as a wife, Heather was kind and gentle, but she was very family-oriented. Jack loved his wife and so, every year of their 5-year marriage, they traveled north to spend four days with the fam.
He didn't mind the family, really, but it was more the fact that he just wanted to be at his own home to relax and drink and have sex with his pretty young wife. Was that so much to ask?
On the first night, Heather got into her childhood bed and stripped down completely naked and pushed her butt against Jack's thickening cock. In that position, he slid his cock into his wife's 26-year-old pussy and fucked her slowly, romantically until he came deep inside her. He was clothed and she remained naked with his cum in her the whole night.
The next morning when Jack awoke, Heather was gone, already downstairs, making breakfast with her parents. He rolled over and looked at his phone for a bit until he heard a new voice. Dina.
Dina, Heather's older sister, lived in California and rarely made it back to see her parents and sister. She was trying to make it as an actress and looked the part. Tall and skinny, maybe too skinny in some areas. Her butt was perfectly proportioned so it actually looked like she had a good ass. Jack was always a fan. Her hair was dyed nearly platinum blonde and when Jack came downstairs, everyone but Dina greeted him. That was the standard. Dina neither liked or disliked Jack, she just sort of tolerated him. Her hair now was pulled back in a messy ponytail and not nearly as luminous. She had on tight yoga pants that were tighter than he'd ever seen. Way tighter on Dina than what his own wife's workout pants looked like when she wore them.
Jack went to hug Dina who was not all that interested but her baggy hoodie fanned out and she embraced him with a weak side hug.
"Dina is just now getting in," Heather said, stirring pancake batter, "She traveled all night."
"I am so exhausted. I'm going to go lie down." Dina departed for her makeshift room in the basement and Heather and her parents and I ate a lovely breakfast and talked about the plans for the weekend.
That night is when things got interesting, and when many lines were crossed and never recovered.
Jack and everyone else went shopping then out to a big dinner. The next day was Christmas Eve so when they got home, Heather's parents went right to bed, and Jack, Heather, and Dina stayed up drinking in the basement, which had a fully stocked bar. A few shots, a few bottles of wine. Everyone was toasted. Soon, Heather pulled Jack close and said in a whisper, "Come on..." implying, of course, that she was drunk and horny.
Instead of dutifully going up to her room and fucking her, Jack had other plans that had been forming all day and all night. He wasn't proud of it either.
Hours earlier, Jack was behind the wheel of his in-laws' SUV, driving Heather and Dina to the mall. The in-laws drove separately to conceal the gifts. At the mall, Heather seemed to fixate on shopping and chatting with her mom, and Heather's dad, Stan, wasn't much of a talker, so Jack was stuck walking with, and behind, often, Dina. He didn't mind the view. She had on different workout pants, purple and nearly painted on. She wore a fleece and a ponytail. Everyone else was 10 steps ahead when they got to the elevator. Two steps down, Jack tried to not stare into his sister-in-laws ass, but he made quick glances anyway, his cock feeling thick.
About halfway up, Dina leaned to one side and let out a long silent fart, almost directly in Jack's face. He didn't really notice anything till she turned around and made the "shhh" sign with her pointer finger and thin lips. He didn't know what she meant. It didn't smell bad, so he was oblivious to anything other than her ass. Sure, maybe the mall was a little funky smelling, that is it. At the top of the escalator, she waited for him and said, "Sorry. You were in a bad spot."
"What do you mean?" Jack asked.
"Oh." Dina paused. "Nothing. Ha. Let's catch up with them."
That was the nicest thing she'd ever said to him. And from that point on, she was much more warm. She talked as the strolled the mall floors, told Jack stories of L.A., dating, and how hard it is to make it in Hollywood. He nodded and said he wasn't bold enough to chase his dream of being a novelist, and so on.
After dinner at a chain mall restaurant, it was time to leave. Heather kissed Jack and told him she was going to ride home with her parents. So it was Jack and Dina in the big SUV, alone, and only Dina knew that just a bit ago, he took in her gas and now, for some reason, she was horny. Beyond so.
Dina couldn't believe it either. Why had that made her want to fuck her brother-in-law? Now she had him alone in the car...
He pulled out of the parking lot and Dina said, "You know, I need to confess. I told you about my dating back at the mall because, believe it or not, I haven't been with a guy....you know, like that, in a while. I guess I am lonelier than I thought."
Jack, unsure of what to say, nodded and drove. He, too, was feeling sexually frustrated. But not because he didn't have sex, he had sex a lot with his wife, but she never let him do anything too far out there. All he said was, "That must be tough. I hope you can sort that out."
Before he could react, her hand was rubbing his crotch. "I am weird. I know it. I know I am wrong for everyone, but I know I can be open with you, because you won't ever say anything to anyone about it. Right?"
His cock hardened and he looked at her for a moment. She was biting her lip. She said again, "Right?"
He nodded and pulled off into the park reserve right off the main road. "Right."
Dina texted her sister that she and Jack were going to stop for one extra special present for her, won't be long.
"I am weird. No one would ever know."
Jack unbuckled his pants, in sheer lust, and said, "Weird, how?"
She takes his cock in her little warm hand and grips it. "Well, for one, I have no idea why but I knew I wanted to fuck you just a bit ago. When I knew you were staring at my butt....but guess what?" She stroked a quick stroke. "I let a nasty fart out right into your face..."
Normally, Jack wouldn't like knowing that, or, maybe he did, he hadn't considered it, but now, with his hard cock in his sister-in-law's hand, he said, "I'd do anything to be near your butt."
It sounded weird, and it is, but he meant it. He had long dreamed of this moment, but normally, the dream would fade because up until an hour ago, she hadn't given him the time of day. She stroked some more, long, sensual strokes and asked, "Does my sister like this cock?"
