Note: Yo I don't even know what I'm doing? My sister was the one that gave me positive feedbacks for this part so she should be the one to blame if it's actually shitty. I also have more motivation to write another part if you ask for it, so don't be scared.
Honestly, nothing amused Damian more than Nell Little. One second she was this skilled detective/hero and the next she was a clumsy teenager with a severe crush on him. She hadn't need to confess anything, it had been quite obvious with the way she had been looking at him since he had came back from his mission. At first, the crushing thing had annoyed him- because really how was he supposed to work with someone that could be potentially distracted by his presence?
He knew that crushing on your partner could be harmful to the progress of the mission (and by he knew, he meant that he had experienced it with Brown a few years back- not that he would ever admit that). However, the whole thing had turned out to be more fun for him than he had thought. For some reason, Little would try to compensate her distractions by being more efficient on the field- and a more efficient partner was obviously something Damian wanted. She would be faster in her moves, quicker in her deductions, and overall she was just a better Batgirl (and although Damian liked to pretend the opposite, he found her quite good before his oversea undercover mission).
Something that Damian discovered he enjoyed to do was teasing her. He'd casually mention that she was eyeing him while they were on patrol just to watch her bite her lips and avoid his eyes (and damn Damian wasn't supposed to think that she was cute when she was acting shy). He quickly realized that the best way of getting a reaction out of her was to take off his shirt while they were training- supposedly because the training got him too hot- and to touch her. Suddenly his touch was like fire to her. She'd jump, avoid all of his blows and take on a defensive stance (and God knows that she was more of an offensive person which had cause a lot of troubles in their partnership- him being also offensive and all). On the other hand, he wasn't comfortable with other people teasing her on her crush.
He had discovered that one morning when he was eating breakfast with Grayson, Todd, Drake, Brown and Little. Grayson had randomly invited Nell to one of the many fundraising the Wayne brothers were supposed to make an appearance to.
"What would I be doing there?" She had asked between two bites of her waffle (which Damian had found particularly disgusting).
"Oh I thought it could be a nice date for you and Damian."
Both of the mentioned had choked on their bites and Nell had mumbled something about her parents wanting to see her before flying away. Damian had thrown a dirty look at Grayson before going after Nell. Somehow, she had indeed been his date to the fundraising. The teasing had promptly amplified and one member of the batfamily would often throw a "Come on Nell, Damian will be here", or a "Nell I know Damian is here and all but I'm the one talking to you" and some "So Damian, when are you asking Nell out?".
Faster then they could realized, the Nell and Damian banter had gone from "I hate you" to "I know you have a crush on me" to "Oh gosh can't they just stop the teasing already." (They being mostly Grayson and sometimes Todd when he wanted to heat the 'brat' up.)
Obviously, Nell was the first one to get tired of the constant teasing. She was in the middle of a sword fight with Damian when he said something along the lines of "Don't let my good look distract you from the combat" and just like that she had enough. She dropped her weapon and looked at him square in the eyes before stating "You're a jerk." She paused. "Like you're actually a jerk Damian. I- I don't even understand why I bother liking you because you are the worst. Can you just take a second and realize that I like you and you don't like me back? Cause all of you seem to think it's a big joke and I can't find it in myself to laugh anymore, ok? I'm sorry I have this stupid crush on you. I'm really sorry I'm such a burden."
She looked as if she was on the verge of crying and for once Damian had to drop his smirk and replaced it with a concerned look. "Nell…" He had to stop there because he had no idea of what he could tell her. Maybe he wasn't the nicest person but that didn't mean that he wanted to see Nell hurt. Sure she was annoying most of the times; not listening to his advice while he was the one with the most experience, second-guessing everything he said, and questioning all of his methods; but she was a great partner (and better than him on a lot of fields live communicating and stuff). So really- he decided later-, in that moment he was so dumbfounded that he wasn't really present. It wasn't really him that walked to Nell. It wasn't him that bite his lips before crashing them with hers. It wasn't him either that put his hands on her waist and noticed that they were both smiling through the kiss. And it was certainly not him that found himself wishing their lips hadn't parted when she left the room.