I can’t stop loving/ having s** with my older brother?

We are both Guys.. We’ve been close since childhood he’s three years older and he’s super sweet and really tall and stocky and beefy and handsome and he has a massive wang.. he also likes that I’m short and skinny and he thinks I’m cute.

We started experimenting when we found out we were both gay as teens and ever since occasionally we messed around which turned into every day.. which turned into feelings.

Since A few months we have something more serious and I let him penetrate me with his massive wang and it feels so good..

I’ve never dated another guy that comes even close to it. I know it’s bad and sounds horrible cause were family but he’s the man of my dreams.. we even talked about marriage and if it’s even possible and I feel bad but we’re really in love.. I’m confused cause society tells it is wrong but we’re not harming anyone and it’s not like I can get pregnant..

I dunno how if I should tell my mom or how..

she cought us cuddling in the kitchen once but didn’t think of it as much.. she also heard us doing it once but we managed to say we were working out.. she believed it..

I feel bad doe lying and doing something wrong even tho I dont want to stop