That is disgusting.
Just, no, I'm sorry all you people out there, but this is not okay in the slightest sense.
There is absolutely no reason for a 13 year old to be sexually active - and I don't really care about if the woman he'd be having sex with was 36 or 13 or 18, there is no reason for a kid to be having sex. Yes, whatever, there are exceptions, some kids are more mature, but there are always fucking exceptions and they are as a matter of fact the minority. But for christs sake - my brother's 12, and he pretended to puke when he saw me kiss my boyfriend, which should be the very most common reaction among kids. They should not be encouraged, by anyone, to have sex yet, because, face the facts, the vast majority are not fucking mature, or informed, enough to realise all the potential consequences of it nor are they most likely capable of actually getting what the act of sex means.
And let's not forget, it's not all about one person here - there are two individuals involved in sex(usually), taking into to consideration only one of them is not looking at the big picture. This woman in this article probably have some damn issues, and they've probably not been properly adressed, which can actually be why this happened at all. She too can also get huge emotional scars from this, hell, she probably has them already.
This situation brings nothing good. Seriously.