Starry

Angel and Niffty are very open about their attraction to Lucifer. They joke about it and they flirt and Lucifer will even play along sometimes. Angel is mostly joking because he doesn't actually want to make Charlie uncomfortable by sleeping with her dad but Niffty is so serious. She would fuck him with zero hesitation like she Wants the devil.

Husk is attracted to Lilith and Lucifer but literally everyone is attracted to them like Look At Them so he doesn't say anything and he doesn't even really think about it. If there was ever an instance where they initiated something though he would be in no questions asked.

Sir Pentious is truly a bisexual disaster. He would never make a move but he's so clearly attracted to them that it's embarrassing. He stutters and blushes and giggles and Charlie keeps her parents so far away from him like her mom already has a thing for loser snake guys she's not taking the chance.

Cherri is genuinely mad about how much she likes them. She's not surprised she's attracted to them sexually cause again Look At Them but she hates that she likes them outside of that too. She's very anti-authority and Lilith and Lucifer ARE the authority in hell like they're royalty they run the place. She's so ready to dislike them because Fuck The Monarchy but they're actually really fun to hang out with and she realizes that they were technical the first rebels and unfortunately she does find that really hot. Lucifer will sneak out with her and they'll graffiti a bunch of the vees billboards. Lilith is genuinely interested in her bombs and how she makes them. Cherri is so into them and somehow she's just as embarrassed about it as Charlie is.

Like first of all Mimzy WILL be flirting with Lucifer just no matter what

In an instance where Alastor and Lucifer are dating Mimzy still flirts with him. Alastor doesn't mind at all because he knows Mimzy and he knows Lucifer and he knows that literally nothing is ever going to happen. At this point Mimzy is mostly flirting because she thinks the panic on Lucifer’s face is hilarious. Lucifer doesn't understand why Alastor’s letting her get away with this because he's seen him eat people who's looked at him in ways he randomly decides he doesn't like but Mimzy sends Lucifer nudes when drunk and that's fine? Yeah okay sure

In a more canonical setting Alastor is completely unsurprised by how badly Mimzy wants to fuck Lucifer. He knows she has terrible taste in men but he's still sighing dramatically and telling her that she can do better. Every time he tries to get her to stop she's just like "Alastor. I WANT A SUGAR DADDY!" And at first Lucifer wants nothing at all to do with Mimzy but then he sees that Alastor actually likes her and he does fully become her sugar daddy just to fuck with him. Alastor isn't even mad at Lucifer like yes he's a little annoyed but he's also just kind of impressed that Mimzy actually did it.

No because actually imagine the current hotel as it is and suddenly there's a flash of light or portals open up and two people come stumbling through. One they clearly recognize as Alastor though he's dressed more casually then they'd ever thought they'd see him and the other is a human who they very quickly learn is actually also Alastor.

Past Alastor hasn't made his deal with Rosie yet, maybe he hasn't even started trying to communicate with the other side so this whole thing is a shock. He's already started killing people so he's not surprised that he's in hell but also What The Fuck Is Going On???

Future Alastor actually thinks this is fucking hilarious and is not freaking out nearly as much as his past selves because unlike them they know what the future holds. They all find out he's not only still at the hotel but is actually married to Lucifer and Lilith with kids of his own (the more attached I make him to people the more everyone will freak out and the funnier it is for me specifically)

Current Alastor is trying to get them Out but the more he learns about his future the more confused and panicked he gets. He doesn't understand how he could have possibly let himself get so attached to these people especially Lucifer (human Alastor also learning he married the devil??? From The Bible???)