following this microfic i couldnt stop thinking about regulus and his relationship with the evans family so heres my little ramble
so primrose and ciarán evans are very much your middle-of-the-road white suburban irish parents. primrose is a short blonde slightly nosy pta mom and ciarán is a six foot six redheaded giant that wears kiss the cook aprons. theyre supremely embarrassing about their childrens accomplishments which, as you can imagine, is extremely baffling to regulus as a concept
(also side-note, but lily is the definition of a daddys girl and on the flip side, petunia is 100% a mommys girl. its important to me that you know this)
he first meets them the summer after first year. he befriended lily & snape at hogwarts and convinces his parents to let him visit spinners end (they only let him go bc snape is part of the prince family, and he conveniently left out the fact that lily would be there too)
quite frankly, regulus is terrified of both her parents when he first meets them, but particularly her father. ciarán is big and loud and passionate, all traits that usually mean danger for regulus. primrose unnerves him bc she is very much like his mother, but shes also her complete opposite. she has all of walburgas best traits and none of her worst (well, besides her anger issues, but unlike walburga she doesnt take it out on her children). regulus doesnt like talking to her because it feels like seeing what his mother could have been had she been more… well, motherly
the thing that brings him and ciarán together is astronomy. ciarán loves the stars, he has a borderline obsessive knowledge about astronomy and has a very expensive telescope set up on the balcony. regulus is intrigued by the muggle perspective of the field and eventually they end up having hours long conversations about the topic regularly, leaving lily and her mother to commiserate about their partners being robbed from them
with primrose and regulus, im not sure they ever reach quite the same comfortability that regulus has with her husband (likely bc both reg & ciarán are probably autistic which was an accident that i now stand by). i think he and lilys mom would be brought together by cooking, by which i mean their horrible cooking skills. sometimes they try cooking dinner together and given their strong propensity to burn water plus their equally strong perfectionism, the results are bad
when hes disowned, the only place he can think to go is lilys. as much as he loves sirius, he would rather die than live with james potter (sorry james, love u mate 😔❤️). he shows up in the middle of the night on the knight bus and is immediately welcomed with open arms. by this point, petunia has moved out and lives with vernon so he takes her old bedroom even though 90% of the time he ends up in lilys bed. her parents turn a blind eye to it knowing that he has nightmares and she brings him comfort
on an unrelated note, when effie & monty and primrose & ciarán meet they become bffs. sirius is ecstatic, regulus is tired knowing that hell now have to see three of the four marauders at every family function going forward