if you're still looking for jiglup inspiration, I have some ideas and headcanons... use whatever of it strikes your fancy
- first kiss! what must that have been like... I always picture it being something that happened after a long period of "is he interested or not" type pining, especially on Jigen's part, and when they finally kiss its so very desperate because finally.
- drunk goofy fooling around. of any sort. maybe it's just antics, like Jigen trying to give Lupin a piggyback, but they're both drunk off their asses and they end up in a heap of belly laughs on the ground. or maybe it's more steamy, like this just loosened them up enough to get really handsy with each other.
- I think it'd actually be interesting if Jigen was more than a little okay with Lupin's various obsessions with random women because when his pursuits end in failure (9 times out of 10), he always comes back to Jigen, and is usually... in a particular kind of mood, and frustrated in a particular kind of way, and it makes him very eager to have Jigen help him with that. Lupin seeks Jigen out independently enough of the time, so Jigen doesn't feel like he's only ever playing second fiddle... Lupin just has some complicated habits and rituals.
- one of them being very assertive, much to the other's mild surprise. Jigen holding Lupin down to force him to look him in the eye and be serious for a moment, but now Lupin is just distracted by how appealing Jigen is like this. or maybe Jigen getting a liiiiittle jealous of some girl that actually is giving Lupin a lot of attention lately, so Lupin decides to show Jigen just how insanely much he wants him, regardless of whoever else might be interesting him at the moment.
- the two of them sitting there in front of Zenigata, handcuffed, faces smudged with dirt and soot, clothes nearly in tatters, bruised and battered, while he yells at them for how much chaos they just caused. and as he's yelling, the two keep whispering things to each other and giggling, and Lupin might've stifled a laugh against Jigen's shoulder, or maybe his neck... and Zenigata is about to blow a gasket because could they take this seriously for even two minutes?? please??? the answer is no, they cannot.
- Lupin waking Jigen up with kisses in the morning. this can be sweet or spicy, either way, maybe both.
Holy shit anon, thanks for the very excellent treasure trove of art prompts! I'm totally obsessed with lupjig first kisses heavily saturated with pining, (I've drawn one before), so you can bet I will draw another one eventually. Someday I would actually love to do a fanart of the first kiss in Prosodi's Marks Come Before, Marks Come After, which might be my favourite lupjig fanfic ever, (ya'll should read it if you haven't). I subsequently head-canon in line with this fic that various other firsts would pretty immediately follow the latter because when you've been pining for that long and you're a horny thief you don't hesitate when you FINALLY know that your feelings are reciprocated. In addition, I think alcohol is probably that extra l push that's needed to loosen Lupin and Jigen's inhibitions up and bring those idiots to the realization that their feelings are mutual so YES. Drunken fooling around also.
I'm not really settled on how Jigen feels about Lupin's flings tbh. I think they probably really bother him before he and Lupin are a thing but maybe less so after, and then yeah, I can see him taking advantage of Lupin coming home in a mood when he gets turned down lol. LOVE the idea of Jigen being possessive/assertive though and Lupin being surprised at first and then maybe later pushing those buttons on purpose to get him all riled up.
Pfftt flirting in front of Zenigata A++. And morning kisses? So sweet.