This was a gift for ohmypreciousgirl on tumblr, who requested some established relationship fluff of Oliver taking care of Felicity when she's feeling sick from her period. Enjoy!

She heard the sound of a key in her lock, and a moment later Oliver's concerned voice rang out from the entrance to her apartment.

"Felicity?"

He'd probably come to check up on her. She'd left work early claiming a headache, and he'd looked concerned but had meetings he couldn't postpone.

Miserable, unhappy and extremely frustrated, all she did was groan in response.

He was by her side in seconds.

"Felicity? Felicity, answer me! Are you okay?" The panic in his voice finally made her lift her head. She was curled up tightly in the fetal position on her sofa, face mashed into the pillows. She realized in a moment what the situation must look like to Oliver.

"Oh, no I'm fine!" she said emphatically, then groaned again and dropped her head as another wave of pain hit her.

"Are you kidding? You are not fine! Do you need to go to the hospital?"

Felicity couldn't help the slightly hysterical laughter she let loose. The kind you only ever let out when you were in too much pain to cry.

"Oliver, I swear to god, if you drag me to the emergency room for period pains, I'll stab you with one of your arrows."

Silence fell, and she imagined Oliver probably had the typical guy look of horror when PMS got mentioned as an actual thing women dealt with and not as a joke.

"Is that – is that what this is?" Oliver's voice was softer now, the panic gone, but still concerned.

Felicity turned her head to face him. He didn't look horrified, only sort of helpless. She sighed.

"Yes. And I can't take more ibuprofen for another hour."

Oliver moved from his crouch to sit down on the floor next to her head. He lifted his hand, hesitating for only a second before he started combing it through her hair. "Is there anything else you could do that would help?"

Felicity frowned. "You're not going to tell me I'm exaggerating?"

Oliver raised his brow in surprise. "What? Why would I?"

Felicity shrugged, which probably looked ridiculous in her position, but she really couldn't care less right now. "The guys I dated always thought I was over-reacting. They never understood that I get cramps like it's Armageddon in my uterus once a month."

Oliver gaped for a second before bursting into laughter. "Well, at least you have a sense of humor about it." He smiled. His fingers were making soothing motions on her scalp and Felicity found it very calming. "Felicity, you are one of the strongest women I know. If you say something hurts, I believe you, no questions asked."

Felicity felt tears come to her eyes, unbidden. She screwed them shut and turned her face back into the pillow. Oliver didn't say anything, just kept playing with her hair, waiting for her cue.

After a minute, she sniffled and turned back to face him. "Could you make me a hot water bottle and some tea, please?"

Oliver smiled.

Ten minutes later she was curled into his side on the sofa, Oliver's arm around her, hot water bottle pressed to her stomach, tea on the coffee table, and "The Holiday" starting to play on her TV. Oliver had called Digg and let him know they wouldn't be in to the foundry that evening, and to keep his eye on the scanners in case of emergency. The warmth both on her abdomen and at her side were incredibly soothing, and he'd returned his hand to her hair, gently brushing out the tangles. Felicity sighed in contentment.

As the opening strains of the movie soundtrack played, she tipped her head back to look up at him, only to find him watching her.

"Oliver," she said, voice soft.

"Hm?"

"Thanks."

Oliver didn't respond, only leaned down, placing a light kiss on her lips before settling back to watch the movie.

Felicity laid her head down on his chest and fell asleep to the sound of his heartbeat twenty minutes later.