#sirireg

[shared-sky]

Orion and Walburga die, so Sirius ends up taking care of his baby sister, and he loves her so much, it’s a no brainer. After a few months, she starts calling him dad, Sirius overjoyed he can make her feel safe enough to.

A few years and the beginning of a transition later, he’s desperately trying not to cum as his little brother bounces on his cock and calls him dad while he’s whining because he’s just so full.

The T shots just make him so horny, and really it’s gender affirming care when Sirius calls him a pretty boy and tells him how much his cock has grown when he slides a hand between them to rub it.

[stardefiled]

Regulus accidentally moaning his big brother's name and panicking until he realises that James started fucking him harder because of it

[twilightspegasus]

post azkaban sirius with ghost regulus

[atticwiferegulus]

sirireg pseudo dad son is sooooo good. like actually one of my favorite dynamics for them. regulus getting adopted by his big brother he’s never even met bc he was disinherited before their parents died. but he’s so hot and it makes regulus dizzy. first time regulus introduces sirius to someone as his dad to lessen the confusion sirius gets so hard he blacks out.

[reggiemydear]

Reggie being caught fucking himself in his brother's bed because Sirius comes back from James's home before the usual time... he makes up an excuse and runs back to his room mortified and Sirius thinks it was just him doing something edgy at first, but then he can't stop thinking about the scene and the sounds that his little brother was making and he starts to lose his mind because of the guilt and shame of what he wants... Reggie being his usual clingy self is not helping to control these sick ideas he has

[blackstarkink]

Toujours Pur

Sirius and Regulus Black. 🖤

Not really satisfied with how Sirius turned out, but it's CHARCOAL so I couldn't keep messing around with it.

[stardust-madness]

Sirius helping Regulus with his T injections......

Sirius kneeling beside him while Reg sits patiently on the bed. He sterilizes the area and gets the shot ready, cooing at Reg that it'll only hurt for a moment, that he's right here.

He does it with practiced ease and it's over in a second. He puts a cute bandage—one with constellations on it—over the injection site and kisses over it. Sirius wipes Reggies tears and kisses over his face, telling him he did such a good job.

"It doesn't hurt that much, you're my little man, you can take it."

Repeating that same phrase when Sirius is forcing his cock into Regulus' tight cunt.

Just Sirius making Regulus into a man. His man.

[number0nedoglover]

Remus who rapes Reggie and forces Sirius to watch as he splits his little brothers cunt open over and over