I have a brother that is 20 years younger than me; is that weird

Different, yes. Weird, depends on you. My mom is 45 and her younger sister is 7. It's all relative.

I dont see it as weird. No difference to having a sister than 10 months younger.Not me though... but ive know women who have not even have their post baby check up and they have had sex again and fallen pregnant,now thats weird to me!
Just enjoy being a big sister.Think of the things you can pass on from your life experiances.

nope not weird. it's unique, especially nowaday, but that was totally normal back then. You are now an unofficial second mother. congratulations.

I'm nine years younger than my brother. It might not be as common, but it isn't weird.

I have a brother who is ten years younger than me, and it kinda stinks because I used to be the only child and he's just annoying me every day.
My cousin's even more extreme. He's in his 20's and he has a sister who is a year younger than my brother.

no not at all although i have no siblings

I have a brother who is around 17 years older than me, I used to think it was weird, but it really isn't. It makes your family unique, you just gotta see the positives of it and not think it's weird (:

That's not so bad, you want to talk awkward? I have a friend from college who now has a stepmother that is 1 year younger than he is.