He's got abs and a chest.
Compare to the skinniness of two years ago.
In a pool with friends. He's the one who looks slightly nauseous.
Sean Ryan Fox, who plays Henry's best friend Jasper, used to be a bit portly, but at age 15 he's slimmed down and developed abs of his own. Soon he'll be a teen idol.
No doubt there's a lot of teen fan fiction shipping the two.
Apparently they're best buds in real life, too.
See also: Henry Danger