No, you shouldn't

You think back over the time you knew Sam. There was nothing that stood out to you that showed he would be unfaithful. You decide that it's a good thing that you never had the guts to ask him out, you would probably be in Ashley's position right now. Instead, you got a loving husband.

Looking over at your sleeping sister-in-law, you decide that you need to cheer her up. You get out your phone and text your sister. You explain Ashley's situation, and ask her if she's up for a girls' night out tonight to cheer her up. She quickly agrees and tells you that she will be over your place soon.

Heading to your room, you look in your closet for something to wear. You settle for a short, tight blue dress that was James's favorite. You also get out a dress that you think would fit Ashley. You call James and update him about Ashley, and your plans. You leave out the reason why Ashley is upset because you don't want him to be pissed off while he was working. You let him know not to wait up for you. Soon after your call, there's a knock on your door. You open it and greet your sister.

"Hey, Sarah, thanks for agreeing to come. Ashley is really upset, and I really want to get her mind off that asshole."

"Of course, we're gonna get her laid tonight!" You laugh at your sister's humor.

"Did I pull you away from anything important tonight?"

"I was gonna have Mom take the kids tonight for a night alone with Jack." Jack was her husband. Sarah had been with him for years. You had a great relationship with him, he was like a second brother to you. He and James also got along really well, something you were very happy about when you first introduced them to each other.

"Oh, sorry about that."

"It's fine, Me and Jack came to a compromise."

"What was that?" You wonder if you actually want to know.

"Anal," Sarah answered matter-of-factly.

"Jesus, Sarah!"

"Hey, you asked." Shaking your head you tell your sister to come with you to wake up your sister-in-law. Shaking her gently, you awaken Ashley.

"Hey, Ashley. I invited Sarah over. We wanted to take you out tonight to help you forget that douchebag."

"I can't go out wearing this."

"Don't worry, I got something you can wear." You hand Ashley the dress you got out for her. She grabs it and heads into the bathroom to change. You make small talk with your sister for a little while before Ashley returns. Ashley weighed a little more than you and as a result the dress was even tighter on her. Her boobs were also bigger then yours, and they were almost bursting out of the tight dress. You couldn't believe how sexy she looked right now.

"Wow!" Sarah says, echoing your feelings. "You certainly won't have any trouble forgetting about Sam tonight."

You slap your sister playfully on the arm for her joke, and the three of you head out to your car.