Need advice

So I’ve f20 started talking with someone m24 and I like him. The question of if this could be serious hasn’t come up yet. Nor stuff like views on marriage, religion, or kids. When should this be brought up? I don’t want to waste my time or sit here guessing I also don’t wanna scare them off. What should I do?

We’ve had s3x and are planning a date and have kissed in public but nowadays that doesn’t seem like anything major to others…