Some Lampirbio/Kirblampio (Kirby / Lampy / Radio) hcs because why not give history's second worst conceived polycule a day in the sun. idk man. I shipped Lampy and Kirby as a kid and didn't know polyamory was a thing, so this is for my kid self who'd have probably loved this if he knew the possibilities.
Radio and Kirby had an on-off relationship for a while. Neither liked how indirect the other was but knew it to be in their own nature too. It drove them apart a lot. They were exes again by the time the first movie took place.
Radio first started realizing his feelings for Lampy when they're fighting yet again and he thinks something like "wowza, he's not a worthy opponent but it's cute that he's giving it his all. Wait a minute hold on- 🤔". He went on to lose and had a very normal reaction to that.
Lampy started feeling safe enough to properly explore his feelings for Radio after the first movie, and he felt very foolish when he finally put the pieces together. But, he supposed it was better to find out later than never. He realized they weren't in the best circumstances to start building something together, so he ends up glad to have waited.
Kirby probably finally came to terms with his feelings for Lampy after they'd been safely in the Master's dorm for a while and Lampy tried to teach everyone to read. Kirby didn't think he needed to know about the world outside wherever home was, but Lampy showed him differently. (Fuck TTR's unresolved thing about them staying in the classroom, they're staying at the dorm.)
They had some trouble sorting through what exactly it was they were by the time they all realized they had feelings for one another. They reasoned with one another that if everyone was fine with the other relationships they had then it shouldn't be an issue, but Lampy brought it to the forefront asking about how Radio and Kirby's relationship worked before, because he knew Kirby and Air Conditioner also had something going on and that Radio knew about it.
Radio and Kirby find it refreshing not having to guess as much at what Lampy is thinking and feeling in general. His directness gets them out of their comfort zone, which they agree is a good thing for them. Having him involved made them realize how little they actually talked about what they wanted out of the relationship in the early stages.
One would think Kirby would keep Lampy and Radio out of trouble, and in a lot of ways one would be right. The full truth is that they check each other a lot more than it seems on the surface. He can be reckless as they are, there's a 1/3 chance he makes it worse if he can be convinced to get involved in their antics.
Death and near death cw under the cut