Think about being in a romance relationship
picture yourself kissing someone, being kissed, romantic cuddles, how comfortable would you be saying i love you, would you feel uncomfortable if someone felt romantic feelings towards you, have you ever had a real irl crush before
and then do the same stuff but swap it out with sexy stuff
Also, a lot of people don't get actual proper sexual / romantic urges till their teens
Like i met my first crush this year (and I'm 15)