Author's note: This is a story based on Arrow and takes place during Season 3, but deviates from canon after the middle of season 2.
**
Sara Lance hadn't celebrated her birthday in over six years, something Felicity Smoak took exception too. It was understandable, Sara was ship-wrecked and fighting for her life during her first birthday away, and the other five had taken place while she was in the League of Assassins, a group which didn't exactly scream light-hearted celebrations, but as far as Felicity was concerned that was all the more reason for Sara to celebrate, and be celebrated as the amazing woman she was.
And certainly, no girlfriend of Felicity's was going to be miserable on her birthday. Felicity was going to make sure of that, no matter what it took.
If that meant inviting her girlfriend's ex-girlfriend who was not just a scary Assassin but the Heir to the Demon herself Nyssa al Ghul so be it. Although it may yet prove to be a decision Felicity regretted as Nyssa spent the whole night staring at her.
As she spent most of her time with Sara at first Felicity thought nothing of it, but then Sara went to the bathroom and still Nyssa stared in her direction. After that Felicity increasingly looked over at Nyssa, their eyes meeting more than once, and Felicity was pretty sure she would have wet herself if she wasn't literally surrounded by superheroes.
When the party was winding down Nyssa approached her, Felicity's heart hammering inside her chest as the intimidating woman marched up to her and asked, "Can I speak to you privately?"
Glancing at her girlfriend who raised an eyebrow at this Felicity began, "Erm..."
"No harm will come to you." Nyssa interrupted, turning to Sara as she added, "I swear by the name of my father, Ra's al Ghul."
There was a moment of silence and then Sara turned to the other blonde and simply said, "It's up to you, babe."
Felicity looked back and forth between the two former lovers, and then as a smug smirk crossed Nyssa's face, "Fine, lead the way."
With only a brief glance at her ex-girlfriend/Felicity's current girlfriend Nyssa turned and walked away, Felicity cautiously following her.
This was hardly the smartest thing she'd ever done, but the last time they were all in a room together Sara had threatened Nyssa's life if she touched 'one hair on Felicity's head' which was a big deal as Sara had told her that Nyssa was the first person she had ever fallen in love with, Felicity being the second.
Also logically speaking if Nyssa was going to try and kill her it wouldn't be after luring her away from Sara. Unless... it was some kind of double bluff, Nyssa using the excuse she would never be that sloppy to shift the blame onto some pre-picked out fall-guy... oh God, perhaps Felicity had made a terrible mistake.
Felicity was actually relieved when Nyssa led her out onto the balcony of the penthouse that Oliver had rented for the occasion because it had see-through windows.
She could even see Sara who was watching them intently, Felicity suddenly feeling brave, at least until Nyssa turned around and gave her that terrifying stair which she had been giving her all night.
Then she looked her up and down, Felicity never feeling more on display. Then she gulped as Nyssa stepped into her personal space and played with a strand of her hair.
"You are very beautiful." Nyssa said softly.
"Thanks." Felicity blushed, "Sara prefers the term cute, but it kind of gets repetitive, and honestly a little condescending-"
"But you talk so much." Nyssa said bluntly, flicking Felicity's hair away.
"I get that a lot." Felicity squeaked.
"You also seem, now how would Sara put it, very vanilla. Sweet and innocent." Nyssa smirked, "Sara is, in her own words, a slut. It makes me wonder how someone like you can please her."
Feeling emboldened by having Sara and all her friends who were beginning to look at them through the glass, Felicity puffed up her chest and pointed out, "She's with me, so I must do okay."
"I suppose..." Nyssa admitted, before smiling, "But I wonder, do you fuck her in the ass?"
Felicity was grateful that the music was still too loud for anyone else to hear Nyssa, or herself for that matter, as although she initially blushed she forced herself to admit as boldly and quietly as possible, "Yes."
Looking genuinely surprised Nyssa murmured, "Lick her ass."
"Yes." Felicity said, feeling smug, "Look, I know Sara is like, way kinkier than I'm used to... also a lot more female. Like 100% more than I'm used too. But I love her, and there isn't anything I wouldn't do for her. And for the record, I kind of like the kinky stuff, thank you. So, nice try, but there's nothing you can say to drive a wedge between us. We have no secrets."
For a second Felicity thought she had one, then the shock expression morphed into something which weirdly looked like something reminiscent of respect before Nyssa landed a verbal blow Felicity didn't see coming, "Have you had a threesome with her?"
Felicity could feel her eyes going cartoonishly wide as she could only squeak in reply, "What?"
Smirking with what looked like relief Nyssa continued, "It is not uncommon for my father to enjoy multiple lovers at the same time, as his predecessors did. Sara knew this, which is why she confessed a desire to participate in such pleasure. But I must confess, I couldn't bear the thought of sharing her. Have you?"
There was a long silence, then Felicity looked over at Sara, "She never said anything."
"The Sara I know was always very private, but your boss assures me you have a talent for getting the truth out of people." Nyssa said, "But given everything you already know, I doubt you think I'm lying about Sara's greatest fantasy."
Looking back at the assassin Felicity murmured, "She said it was her greatest?"
"At least of the things she never tried." Nyssa smiled, "And it's not too late."
"Uh... what do you, oh! OH!" Felicity said, realisation hitting her seconds later, "I, I thought you couldn't bear the thought of sharing her?"
"Not when Sara was mine." Nyssa admitted, "Now she's yours, and the decision falls upon you to offer her this gift or not. Although you did say you would do anything for her, and make this 'best birthday ever'."
There was a long silence and then Felicity pointed out, "You just want her back?"
"Yes." Nyssa admitted sadly, almost laughing as she added, "But I'm not convinced it will work. I have seen her with you. She adores you. Not that I can blame her. You are truly beautiful. Sharing her with you, even just for a night, would be no great hardship."
Another long pause and then Felicity said, "I'll think about it."
Nyssa allowed Felicity to turn and walk a few steps before calling out, "'I'll be waiting in your apartment. If your decision is no you have my word I will leave without seeking retribution."
*
Sara had tried not to panic when Nyssa first approach them, or when she led Felicity away or the two of them were talking. Not just because she feared for Felicity's safety.
That was part of it but Nyssa had given Sara her word and it was unlikely she would try something so bold under the circumstances, but for better or for worse what she was most afraid of was Nyssa telling Felicity something about her that would scare her off.
After all, she had shared much with Felicity, far more than she had originally intended to, but there were some things Nyssa knew about her past, the things she had done, things she'd rather left forgotten.
So when Nyssa left Felicity unharmed it was a relief, but Sara's mind was not entirely put at ease given the expression on Felicity's face as she returned to the party, Sara quickly approaching her girlfriend and nervously asking, "Everything okay babe?"
"Yeah, yeah, I'm fine." Felicity quickly replied unconvincingly, and then when Sara gave her a look she leaned in and added, "We can talk about it later, okay? For now just enjoy your party."
Sara swallowed and nervously whispered in Felicity's ear, "Are you breaking up with me?"
"God no!" Felicity exclaimed, loud enough to grab everyone's attention. She then blushed and whispered in Sara's ear, "I'm absolutely not breaking up with you, I just can't have this conversation right now, okay? I need time to process. Until then, please try the cake. It's so good."
What was going on made Sara finally cave and had some of the cake Felicity had been pushing on her for an hour. It was admittedly good, but taking the time to sample some cake meant she lost sight of Nyssa, and when she went looking for her she was nowhere to be found.
Which was frustrating, because it meant Sara had spend the next few hours obsessing over what was waiting for her when the party ended, and assuring the likes of Oliver and Diggle everything was fine when the truth was she didn't know herself.
Still she hadn't forgotten her training and was able to stop herself not to push Felicity for answers the second they left the party. Thankfully Felicity didn't make her wait much longer than that.
In fact as soon as they got in Felicity's car the hacker turned to her and blurted out, "Is your greatest fantasy to have a threesome?"
After letting out a huge sigh of relief Sara couldn't help but chuckle a little as she replied, "That's it? Oh thank God!"
Felicity frowned, "What's that supposed to mean?"
