It had all started fairly innocently, though it did not stay that way for long.

After her post-work patrol, Kara entered her apartment while sifting through her mail, intent on a long hot shower to wash away the stress of the day followed by a night of lounging on the couch in her sweatpants watching whatever silly rom-com Netflix has recently added.

While placing the mail down on her kitchen table, Kara noticed a bouquet of flowers on the table, with a note beside it. The note only gave a time, 7pm, and Lena's initials. While Lena was known to surprise her girlfriend on occasion, this was the first time that Lena had been quite this mysterious. Kara couldn't help but wonder if this had anything to do with the project that Lena and Alex had been working on over the month. Despite all attempts otherwise, Kara could not help but hear snippets of conversation between the two women, and could tell that Alex was helping, albeit very reluctantly and with mention of Lena's penthouse.

Picking a red flower out of the bouquet and bringing it to her nose, Kara smiled to herself and decided that while sweatpants might be out, that she still had time for that long hot shower before she had to get ready for whatever Lena had planned for the night.

Walking into her room, still holding the flower, Kara noticed yet another bouquet of flowers sitting on her bedside table, again with a note. This time the note held only five words: behind the door, nothing else.

Now puzzled, Kara looked behind her bedroom door and seeing nothing, continued into the bathroom to look behind the bathroom door. There on a hanger laid a beautiful navy blue dress, one which Kara never would have picked out for herself given the risque cut of the dress, with a pair of matching heels below. The words from the second note echoed in her head, nothing else, and Kara realized that Lena had left nothing else in the bathroom but the dress.

Wanting to make sure she was ready with time to spare before 7pm, Kara entered the shower, still contemplating the meaning of the dress, the flowers, and the mystery of the whole situation. She and Lena had been together for almost a year now, and while they had discussed matters such as moving in together, Kara was sure that Lena wasn't looking to propose or anything of that variety tonight.

Deciding to just relax as much as she could, and go with the flow, Kara finished her shower and prepared herself as best she could for the mystery night.

At 6:45 on the dot Kara's phone vibrated, showing a lengthy text from Alex on the screen.

I know Lena will be on her way to pick you up any minute. She has asked me to text you as by now you are likely very curious about what will be occurring tonight. While I can say that I wish, as your sister, that I wasn't involved in the planning (there are some things a sister doesn't want to know), I am happy that Lena came to me. All you need to know for tonight is that Lena has your best interests in mind, and that I have made sure that there will be no issues.

Despite Alex's assurances, Kara was even more confused - what could Lena have possibly planned for tonight? At least she now knew that she would find out tonight whatever it had been that Lena and Alex had been plotting for the past month. As it drew closer to 7pm, Kara disregarded her previous decision to relax and began pacing back and forth, her mind working overtime in an attempt to figure out exactly what Lena had planned.

At 7pm on the dot there was a knock at Kara's door. Opening the door Kara saw Lena standing there in a gorgeous black dress, holding a white flower to her lips painted with blood-red lipstick.

Before Kara could open her mouth, Lena placed her index finger on her lips to signal that Kara should remain quiet, leading her first into the elevator and then into the black limousine awaiting their arrival.

Sitting in silence with Lena, Kara could not help but spend the short car ride to Lena's penthouse staring out of the car window, trying yet again to determine what Lena's plans were for tonight. It wasn't until she felt Lena's finger tracing along the outside of her thigh that Kara was able to rejoin Lena in the car. Looking into Lena's eyes, Kara saw nothing but the love Lena had for her, with just a hint of the hunger that she had seen glimpses of during the course of their relationship.

Feeling the limousine come to a halt, they exited the vehicle, still in silence Lena leading Kara towards the elevator and up to her penthouse with their hands still joined.

Stepping up to Lena's front door, Lena drew a black scarf from behind her back, with a questioning look in her eye. Realizing that Lena wanted to maintain the silence while asking a clear question, Kara nodded. She had no issue with Lena blindfolding her to maintain the surprise, she trusted her implicitly.

Now down her sense of sight, Kara was lead by Lena into the penthouse, and towards what Kara had previously believed to be the guest room, though there had been some construction in that room over the past few months, including some sort of plating that she was unable to see through.

Coming to a stop, Kara heard Lena enter a code into the access panel for the door before she was lead into the room.

Taking a few more steps before coming to a stop, Kara felt Lena press into her from behind, feeling her warmth against her back.

"I trust that you are very curious about what my plans are tonight, and what I have been doing with this room and why your sister has been involved in my planning. I wanted to give us a place where we can explore other facets of of our time alone. I know you have been concerned about fully letting go out of a concern for hurting me, and I've been concerned about letting you see, well, other aspects of my personality." Stopping to take a deep breath, Lena drew her fingers down Kara's arms to lightly hold her wrists.

"I know you have seen it in my eyes, even though I have done my best to hold it back. I want you Kara. I want to tease you, I want to mark you, I want to hear you beg me to let you come." Gripping more tightly to Kara's wrists, Lena continued. "I approached your sister for help, to determine if there was a way to help you let go without harming you, or anyone or anything else. The construction that has been occurring in this room was done in conjunction with your sister and I can assure you that everything is safe." Feeling Lena's breath against her neck and the strength of the grip on her wrists, Kara began to understand what Lena was asking, and began to feel her body's responses to Lena's actions and words.

Drawing the blindfold from Kara's eyes, Lena stepped back from Kara, towards another access panel on the wall, giving Kara an opportunity to review the room. Upon opening her eyes, the first thing Kara noticed was the large four poster bed set against the far wall, and the chests of drawers which also seemed to share the same panelling as the room.

"Kara, I want you to know that while I want to show you all of me, to give you the chance to let go, that you can stop this at any time. These chests contain a large variety of toys for us to play with, and the bed has been reinforced for your strength." Taking her lower lip between her teeth, Lena hesitated. "There is also one other feature to this room, one which your sister helped me with."

As soon as Lena touched the panel, and the room took on a greenish glow, Kara realized what her sister's role in the room's construction was, as she felt her powers weakening.

Speaking for the first time, Kara looked at Lena with amazement "You recreated the training room here?"

Looking unsure of herself for the first time, Lena looked at Kara and nodded. "I wanted to give you a safe place where we could explore. When the panels are retracted there is no risk to you whatsoever, and Alex and I increased the security system so that no one, not even Lex, could remove the Kryptonite."

The grin that took over Kara's face was more than enough answer for Lena. Kara quickly crossed the room towards Lena before drawing her into a kiss that left both of them breathless, and more than a little turned on.

Pulling back from the kiss, Kara was amazed at how quickly she could see the hunger come to the forefront of Lena's eyes.

"So, what do you say Supergirl, want to play?"