The question as phrased, the answer is no. It is not legal. If the 16 year old engages in any sexual conduct with the 13 year old, they could face statutory rape charges and the parental consent assuming there was any would have no bearing

Can a 12 year old date a 16 year old online?

yes, it is fine for a 12 year old to date a 16 year old as long as they dont engage is any sexual activity until they are both at least 18 years old.

Can a 13 year old online date a 17 year old?

No. It is not illegal for a 13 and 17 year old to date.

At what age do boys produce sperm?

Guys start producing spermatozoa (or sperm, for short) at the onset of puberty. Puberty starts at different times for different people. Boys usually start puberty when theyre around 10 or 12 years old, though some start a little sooner and others a little later.

Can a 16 year old relationship last?

By age 16, relationships last an average of two years, writes Fogarty. Most long-term relationships do not occur early, and during the teen years, you are likely to see group dating, according to Melanie Greenberg, Ph. D., in the article titled The Neuroscience of Relationship Breakups, in Psychology Today.