Here are all of my Harry Potter fanfiction recs where the main pairing is from the Marauders' era. Right now I just have James/Sirius fics, but I will add more as I start exploring other pairings!
Title: nothing on my tongue but hallelujah Author: gailsauce Pairings: James/Sirius Rating: NC-17 Word Count: 1,265 Warnings: quidditch!sex Summary: James loves winning, and he could never surpass what he’s won today. Super fun and very hot PWP. Just feel so perfectly in character.
Title: All About You Author: violet_quill Pairings: James/Sirius, James/Lily Rating: NC-17 Word Count: 1,874 Warnings: infidelity, dirty talk, talk of bottom!james Summary: Ever since James moved in with Lily, he doesn't seem to have as much time for his friends. Sirius has finally had enough. So fucking hot (the dirty talk alone!) and I love the ending. Not as angsty as the usual James/Sirius stuff I read.
Title: A Night to Remember Author: torino10154 Pairings: James/Sirius, James/Lily implied Rating: NC-17 Word Count: 1,950 Warnings: first time, blowjob, fingering, anal, infidelity, bottom!james, sirius black fest 2013 Summary: This is James's last chance and Sirius never could resist when it came to James. So I may be a bit biased because this is the first fic that I've read that I prompted (even if it was anonymous!) But this is perfect and exactly how I picture them. Their best friends and you can see how much that bond means to them even if James is getting married. There isn't too much angst but there is still that subtle implication that Sirius is just a little bit heartbroken. And the sex was super hot!
Title: In the Arms of the Ocean Author: writcraft Pairings: James/Sirius Rating: PG-13 Word Count: ~2,200 Content/Warnings: Major Character Death, azkaban!fic, Mindfuck, hp drizzle 2015 Summary: I wake to the cool light of the breaking dawn, the air fresh with the scent of rain. It’s another autumn daybreak and the windows frost with raindrops and condensation. I can smell grass, the dewy chill of the morning and James. This fic is gorgeous. The writing is amazing, and I just love Sirius here, the way he sees James, his love and guilt and fear that manage to come through so beautifully in his memories and fantasies. And the last line is perfection.
Title: Of Alcohol and Resolutions Author: lilmisblack Pairings: James/Sirius Rating: NC-17 Word Count: 2,250 Content/Warnings: Oral, dirty talk, infidelity, semi-public!sex, holiday!fic, daily deviant kinky kristmas 2011 Summary: I was drunk, and randy, and frustrated, and pissed, and so bloody sick of watching James and Lily all over each other. So I made the most stupid New Year Resolution in the history of the wizarding kind. First person, which I normally do not go for at all, but I love the dirty talk in this one. And the premise is just so perfectly Sirius.
Title: Lust for Life Author: misanagi Pairing: James/Sirius Rating: NC-17 Word Count: 2,725 Warnings: Some D/s play. Smut, bottom!james Summary: Prompt- D/s, school uniform, NO canon, - The winner takes it all Oh my god this was so hot with a great Sirius/James friendship dynamic and a dominant Sirius!
Title: Perfect Author: kabeyk Pairing: James/Sirius Rating: NC-17 Word Count: 3,161 Warnings: mind altering substance: alcohol Summary: Drunken sex in James' dad's study. This was wonderful. Sweet and touching and super hot!
Title: As Lovers Go Author: xylodemon Pairing: James/Sirius, Remus/Sirius, James/Lily Rating: NC-17 Word Count: 3,249 Warnings: infidelity Summary: He ran his hand up James' back, brushing his thumb over the mole just under James' shoulder blade, then curled his fingers into James' hair, watching as the messy strands slipped over his knuckles. This is perfect. Angsty and a bit heartbreaking and just fantastic characterizations.
Title: In a Little While Author: misanagi Pairing: James/Sirius Rating: NC-17 Word Count: 4,959 Warnings: talk of bottom!james Summary: Sirius kind of makes his move. If he's lucky James didn't even notice… if he's really lucky, he did. This was so fantastic and not all angsty (which is rare for this pairing) and sexy and perfectly characterized. Loved it!
Title: Unspoken Author: amorette Pairing: James Potter/Sirius Black Rating: NC-17 Word Count: 6,200 Warnings/Content: shared bed, intergluteal sex, hp concrit fest 2014 Summary: The summer before his seventh year, Sirius left home and went to live with his best mate, James. Really wonderful fic showing James and Sirius' friendship and their growing feelings when Sirius goes to stay with the Potters. I thought the characterizations were really wonderful here, and their chemistry was super hot!
Title: Morning, Noon and Night Series (3 Fics) Author: pauraque Pairing: James/Sirius Rating: NC-17 Word count: ~6,250 Warnings: D/s, bondage, dirty talk, underage Summary: The boys indulge in some light summer reading. This was super hot and very light-hearted and fun.
Title: Theirs Author: inell Pairings: James/Sirius/Lily Rating: NC-17 Word Count: 1,450 Content/Warnings: threesome, m/f/m, consensual infidelity, bottom!sirius, implied switching, public!sex, sirius black day of the dog 2014 Summary: It’s James’ choice tonight, and he wants Sirius in the middle. Super hot fic and a fabulous dynamic between James, Lily, and Sirius!