If a person was stranded on a desert island with an opposite sex kid/teen, and nobody else ever learned what happened on that island..

What percent of men, and what percent of women would have sex with a cute 17 year old?

What about a 13 year old?

Or a 9 year old?

I would say around 70 to 90 percent for the 17 year old for both sexes. Around 50 percent of men would sleep the 13 year old, and around 10-15 percent of women would do the same. Hopefully less than 5 percent of people would hurt a 9 year old like that.