How to explain someone that relationship is not a joke?

I think this is something she’ll have to figure out for herself. Anyway, it sounds like you’re both pretty young. She has plenty of time to learn to get serious. And she doesn’t sound like someone who listens to advice.

Sex is a pretty serious business, though. It is not a joke. Youngsters who don’t recognize this are heading for trouble.

@kneesox The fact is that she is 18 and I am 15 :))

My dear, you are pretty young.

You could say “Slow down and take your time,” and you’d be right, but I don’t know that any young person and maybe even a lot of old ones have ever taken such advice to heart.

The best thing might just be “I’m concerned about you, and I’ll be here if you need me.”

“Have you ever heard somebody who is in a relationship laugh?”

@rebbel um no

Don’t even try. Your rules for relationships should not be imposed on her. She has to learn for herself.

Thing is, many relationships ARE jokes. Look at celebrities and sports figures (and some politicians) who jump around from partner to partner like coin flipping.

It would be unethical of you to force her to follow your views.

She’s young. Plenty of time for trial and error. People mature emotionally at different rates. Took me forever to get my act together, but I’ve been good now for 42 years and going. You sound like you may be more mature than your sis.

It seems like she’s doing just fine and doesn’t need anyone’s advice.

@Kropotkin @Nomore_lockout @elbanditoroso Thank you everyone for your advices!!

@mascot_18 If she’s 18 and you’re 15, it’s not likely she would listen to you anyway but you could just express to her your support and love. But if she’s having sex, she should definitely be using birth control.

Stay out of your sister’s business. Everyone wins.

@janbb Yes ok