Prompt #9: Who wakes the other up in the middle of the night to tell them a cool dream they had? Who has the most nightmares, and who sings them back to sleep after?

Headcanon: Sara always held her dreams close, only feeling the urge to tell her sister about them. Then she met Leonard Snart, and he awoke that need as well. After Mick's betrayal, she acts on the urge in order to distract him from his demons. The need died when both Laurel and Leonard died and didn't return until Len did.

Before the Oculus, their nightmares tended to be even: childhood trauma matching with an assassin's life. After the Oculus, and Len's return, the number of nightmares Len had surged in amount. Every day there was a new one of some horrible event he saw while trapped. Her worries ran high as well, causing nightmares to abound for her. On those nights where both were haunted, Len would sing to Sara. On the nights Len's nightmares were at their worst, Sara would regale an incredible dream for him. On nights hers got the better of her, Len would tell her of the good dreams the Oculus left behind.

For as long as Sara could remember she'd had vivid dreams, both good and bad. When she was younger, she would share all of them with Laurel. As she got older especially during her time in the League, her dreams became sacred. She never shared them, not even with Nyssa. But the need to share returned the first night after nearly freezing to death in the Waverider's engine room, after Leonard Snart chose the crew over his best friend, his partner, his big brother.

He snuck into her room, breathing ragged and eyes wild. He easily slipped into her bed the moment she gave him the invitation. He tried to hide his large frame in her and her covers. She stroked his short-cropped hair as his head rested on her chest, listening to her heart beat.

They sat in silence for a few minutes before Sara spoke. The man was still shaking, and she felt the pull to talk quietly to him, anything to distract the man she felt such a deep connection to. "Before you came in I was having the most exhilarating dream ever. I was a bird and flying across the city, all the way to the woods." She made sure to keep her hushed voice as soft and gentle as possible as she continued to stroke his hair, the fine bristles tickling the sensitive pads of her finger tips. Sara continued to talk about her dream, to the point of making segments up, until the man's shaking stopped, and his body relaxed, breath evening out in his sleep.

Over the following weeks, as things began to progress quickly, especially with Mick's Chronos reveal, Len or Sara would slip into each other's rooms more often, usually during another night of nightmares. Every time, they would tell the other of dreams they'd had. Sara's were almost always of flying over some city or time she'd visited. Len's were always of some grand heist that was bigger than the last, and, of course, he always got away. On special occasions, when the demons really got the better of her, he'd sing softly to her all night.

When the Oculus happened, Sara no longer felt the desire to share her dreams. She'd write them down as if she were telling the only person she ever wanted to share them with: Leonard Snart. She closed herself off from everyone. When she'd went home she'd wanted to tell her sister about her new dreams for flying at the side of a beautiful blue-eyed Raven, of her dreams of continuing some 'saving the world' mission with an ex-thief at her side as her equal, her partner, her friend, her lover, and her husband. But, Laurel was gone as well. Part of her felt like maybe they were working together to protect her and Mick, but that thought only comforted her for so long.

By the time Leo came around, she'd taken a disinterested outlook. If you were family, you were cared for, otherwise, she'd play nice until their usefulness was over then she was done. Leo tried to get her to fully open up, but she wouldn't. her dreams were for one person only: Len Snart. This man may have the same face, but they were too different. She didn't feel that pull to him, and she knew she was never going to. He wasn't her Len. Leo stopped prying after a short conversation about their boundaries. He understood and wasn't going to push. He left for his own Earth shortly after.

Months later, her Len was returned by a hero from Kara's Earth named Dr. Fate. Over the following months, friendships were reformed and strengthened. He and Sara made their way back to "me and you" quicker than either expected. There was no more sneaking into each other's room. The captain's quarters now housed the both of them.

The need to share dreams returned. Sara realized quickly, Len's nightmares were worse than ever. He would cry out for someone to move then cry over their death. Many times, Sara was awoken to him begging her to wake up only to find him having just dreamt of her death. The originals of the crew, Barry, and Lisa quickly got used to being woken up randomly to ensure him they were alive.

After a while, Sara became aware of certain movements he'd make and know she needed to wake him. It was always with a story of a dream she had. She'd get him to relax, to calm down, and even huff out a chuckle. Eventually, he's severe nightmares lessened. He slept through the night hold Sara securely. There were even nights that he woke her from her nightmares with a story of what he dreamed their future might hold.

In a soft voice one night when her bloodlust had been too close to the surface that day, he began to whisper, "We were married, had been for a few years. Our house was huge but had just enough space. Mick even had his own room though he didn't live with us." He kissed the crown of her head. "We already had two beautiful children, adopted from an abusive home. I was cooking lunch while our eight-year-old tried to play with the Shadow Kitten our six-year-old created. I felt you coming up behind me, so I turned. You were standing there, Sara, absolutely beautiful." He felt her relaxing more against him. He squeezed her slightly, the most incredible thing about the scene though, was when I placed my hands on either side of your stomach, and I felt the dual kicks of our twins that were growing insides of you."

She sat up, staring at him, and he calmly returned the gaze. In a dazed voice, she whispered, "You dreamt of us having children together?"

He nodded. "I wouldn't mind it, if it were with you." He confessed.

She leaned down and kissed him. It quickly heated up to practice for making the twins he envisioned.

It was a few short years later that Sara slowly made her way from the bedroom she shared with her husband. Near the bar in their large kitchen she saw their adopted daughter and son. The boy started as the girl's older foster brother, but after finding the mother suing a blood whip on the boy, they adopted the pair. Nikolas was a beautiful little red-haired boy with thick curls in his messy hair. Chyna was a beautiful little girl with hair that was black mixed with brown. Nikolas was currently trying to play with the Shadow Kitten his sister created. Both were metachildren. Shadow animals for Chyna and wind manipulation for Nikolas. The girl giggled every time the boy's hand passed through the kitten.

She walked further into the kitchen area and watched her husband turn around to greet her from the stove where he was cooking lunch. She watched as Leonard stepped forward and placed his hands on either side of her stomach, and then she felt the dual kicks their twins gave. Suddenly her eyes widened. She'd been told this scenario before. Len leaned in and kissed her. When they pulled back, she murmured, "You were telling me our future that night, our first night truly together."

He smiled. "Not everything the Time Stream and Oculus showed me was death and destruction. I held on to what I wanted the future to hold for me and you."

With a smile on her lips and tears in her eyes, Sara pulled the love of her life in for another kiss. This, this is why she loved sharing her dreams with him: sometimes they came true.

A/N: Ok, I have to say sorry this has taken so long. I've had this prompt finished since the last one was posted, but number 10 wasn't easy coming. I've been working on a project/work with my best friend, and I started my clinical rotations 3 weeks ago. Things have been exhausting and long already, but I've enjoyed most of it. I've had two of the cutest dogs as surgery rotation patients, and super nice owners. I'll try to be faster with the updates, but I've learned that exhaustion actually makes it much harder to create things you enjoy, so that's been fun.

I hope you enjoyed this latest prompt!