Why don't I just come out with it? I made love to my brother at my parent's wedding.
Say what? You must be kidding me. Does anyone else know about how you made love to your brother at the wedding of your parents?
I guess no one knew and I don't regret it, we're very close.
It's not morally right and considered disgusting to make out with a sibling.  Your brother should not be allowing this to happen, and if your parents found out they might disown you.
I guess people stop having siblings make out with each other.
Yes this has never been right as far as I know of, incest is not a common thing for anyone to take part in. Did you know you could have severe mental issues thinking it is normal?  Please get someone professional to take to about this right away.