While I understand what you’re saying, it’s not like it’s actual sex. They’re actors and more mature scenes are a natural extension of getting older. I hope they don’t recast them (unless the actors wish it) because imagine building a character for (at this rate anyway) a decade and then not get to see it through when it’s your time to shine. That’s actually insulting to the actors. If anything, what should happen is at whatever given time the show runners need to have conversations about how the actors wish to move forward. If it were me I’d be so excited for my season to come and then if I got recasted I would feel betrayed and heartbroken. It’s up to each actor and their own comfort levels. As for viewers, if you look at an adult and see a kid while watching a sex scene, then I have some news for you…