Taught my sis how to kiss?

So um my little sister Emma and I were hanging out and basically she was worried she would be a bad kisser and so we talked about it and I've only kissed like twice but I kinda told her how... but it's hard to explain. So like, I ended up just showing her, like a quite peck, but of course she knew how to peck lol So I kinda ended up showing her more like keeping our mouth open a little, and like, hesitating to build suspense kinda lol and kinda kissing just one lip and stuff. I don't think it was gross or that I hurt her or anything but idk how common it is. One of my best friends say they had the same thing happen with their big sis but one said eww and thought it was really weird.
Is this ok?
We ended up practicing again after that too
My mom walked in on it and kinda freaked out at first but ended up talking to us to just make sure I wasn't like, pushing her and we both told her it was the other way around lol.
IDK what to do, Em wants to keep practicing.