I agree with your analysis of why adolescents feel icky about their parents sexuality. Even if they are sexually active and well versed in the mechanics, they have little experience and there is barely a person there to share with another sexually. They try to apply their limited knowledge of sex to adults and come up with, "ewwww gross".
I don't mind the sun sometime
The images it shows
I can taste you on my lips
And smell you in my clothes
Cinnamon and Sugar
And softly spoken lies
You never know just how you look
Through someone elses eyes
BHS-"Pepper"
