It's in the UK. I'm quite sure a 17 year old boy(she was 17 and the boy 13 when they started) would've gotten the same punishment. Where I live, 17 year old boys fuck 13 year old girls all the time, and in most cases it's no big deal as long as it's consensual. At best they get yelled at by the girls' parents, at worst they get a $5000 fine or suspended sentence. They definitely don't end up in a sex offender registry. I guess in this case it just looks so much worse because the girl is so damn fat and ugly it's hard to imagine the boy wasn't coerced.