When things don't work well in the bedroom, they don't work well in the living room either.
Sex is a natural function. You can't make it happen, but you can teach people to let it happen.
The best sex education for kids is when Daddy pats Mommy on the fanny when he comes home from work.
Science by itself has no moral dimension. But it does seek to establish truth. And upon this truth morality can be built.