Hi hope you like this, decided I needed a plot rather than Mon-El and Kara dancing around their feelings
Mon-El and Alex sat on her sofa, J'onn paced the room, "Are you sure?" he questioned in a tone of concern and fear.
Alex nodded. "The proof is right there" she indicated to a metal box in the middle of her coffee table.
"How could they know about it, "J'onn queried not wanting to voice the possibility of there being a leak in the DEO.
"They didn't know about Mon-El, or at least don't know what he is" Alex answered. Mon-El looked at her
"So they think I'm Kryptonian? Or Earthling?"
"Or they don't know you are on Earth, Or that Daxamites are different. I think we have to look at staff changes before you woke up"
"They know about the bar" Mon-El added, "So we need to assume they think I'm Kryptonian. And this was aimed to take us both out"
"Well I don't say this enough, but I'm glad we have you to call on"
"I couldn't have stopped them without you" he looked earnestly at Alex and J'onn
Kara landed with a thud on Alex's balcony and crumbled on to the floor. Alex got up and dashed to let her sister in
"Hey" she grinned, and slurred a little, she was clearly still a little drunk
"Hi Kara, why are you here?"
"I really needed to talk to you" sadly stated giving her sister sad puppy dog eyes.
"You need a shower, and coffee" Alex tried not to laugh at her sister who was falling over her own feet. Kara regained her balance and got through the balcony door, when she spotted Mon-El who was stood next to J'onn watching the sisters with interest, and ran up to him, leaping on him. His shocked reaction was reflected by the rest of the room. He let her go so she dropped to her feet.
"Hi Kara?" he questioned and she burst out crying
"I'm so sorry and you are so nice, I didn't want to hurt you"
"How have you hurt me?" he looked totally baffled
"I slept with Winn!" she announced, Mon-El didn't know what to say so smiled softly at her
Alex and J'onn exchanged looks, but Mon-El was focused on Kara, he softly brushed her tears away, and moved her to the kitchen area, grabbing a bottle of water on his way.
"Kara I need you to drink this" He handed her the water, "You are not yourself and we need to get lots of fluids into you so we can flush this out of your system, so will you drink this for me, I will get you a nice cup of coffee, then you can shower and we can talk" He moved to get some coffee, but she grabbed onto him, Alex indicated that she would get the coffee as her sister was gripping onto Mon-El's hand. J'onn looked bemused the whole time.
Two large coffees later, and 2 pints of water and a shower (Alex managed to talk Kara into letting go of Mom-El's hand long enough to get her sister into the shower) Kara was acting a lot more Kara like. Mon-El was sat on a chair by himself and Kara was avoiding eye contact with him, J'onn was still pacing, Alex was sat next to Kara holding her hand. Kara was wearing some of Alex's jog bottoms and a baggy T-shirt, her damp hair felt nice and cool.
"We think someone poisoned you" Alex started
"How?" Kara looked confused. "Nothing impacts me"
"Looks like Red Kryptonite" J'onn joined in, "We need to test it to be sure"
"I don't remember seeing any" Kara protested
"It appears it was merged with the alcohol we were drinking last night," Mon-El took up the story, "you seemed to react very badly, worse than any other time we have been drinking" he then threw her a teasing smile, "I know my super power is to attract women…" Kara blushed
"Yes, thanks Mon-El" Alex tutted, "Well we both though you were acting very odd, and Mon-El wasn't that drunk, so he sobered up, just in time"
"Lots of water and a cold shower" he shook his head with a slight smile
"Just in time?" Kara was concerned
"Well it seemed that there was an attack planned on a charity masked ball," Alex continued, "I got the call that there were some alien weapons being used on civilians, J'onn wanted back up so Mon-El went along" Kara looked at him with pride.
"Yes they seemed very shocked to see someone with your powers there" Mon-El added, "Which got me and Alex thinking about how drunk you were, and aggressive you were in your drunkness. So I went to the bar to see what drink Winn had got for us, I still had most of it in the bottle so it was easy to find. On the shelf where it was stored was a red stone that was glowing, I grabbed that and came to find Alex"
"Clearly we were a little concerned to find Mon-El with a chuck of Red Kryptonite in his hand" J'onn continued his tone indicating that he was far from pleased to see the young Daxamite holding something known to bring out the worst in Kara, "after what happened where you were near it, him holding it was a concern."
"But he suffered no ill effects" Alex carried on, "Which is interesting, and we are looking into that" she gave him a glance, "Clearly it doesn't impact Daxamites, anyway we think that some of the energy from the Red Kryptonite infused with the alcohol and made it more intense and brought out your darker possessive side, as well as made you drunk and act without concern for consequences."
"I'm not sure if that makes me feel better or not" Kara replied sadly not regretting everything she had done.
"The good thing is it seems to leave your system as the alcohol goes, so it's not long term, and it hopefully will fade a lot. Last time when you were infected before your behaviour was worse as time went on, this time its eased a lot. We do want to run tests on you but are concerned about the DEO and who knew about Red Kryptonite. How it impacted you, and if they know you are supergirl and your relationship with Winn" Kara winched at that term, she was so worried about what she had done the night before.
Mon-El glanced at Kara then too Alex, who nodded, "Right I need some sleep have been up for 24 hours, I'm off to bed. J'onn I think you need to deal with that, and put it somewhere safe, it may be wise to not let on we know" he indicted at the case on the table. J'onn agreed and took the case, it was decided that they would put some fake Kryptonite next to the drink bottle in the bar and set up monitoring to see who used it. J'onn left, and Mon-El did as well but only after telling Kara that once she had rested and fixed her hangover they needed a chat. She couldn't agree more
"So Kara, you and Winn?" Alex asked as the men left and Kara burst into tears.