Why is my friend so much more ripped than i am?

We're both 17 and weve been almost best buds for about 4 years now. Now my friend, is THE most ripped kid i have ever seen in my life. He must have something like 1% body fat. me and him go to the gym three times a week, and he does kickboxing lessons for an hour i think one night. Aside that, im not even joking, he has ripped abs and a v-shaped body, yet he leads such an unhealthy lifestyle. When he's a gym he's only there for maximum 1 hour, these days mostly half an hour so he can see this girl he likes. His family never cooks, everytime ive been there they always have frozen food or take away, he says they have it at least twice a week. At school all he eats is food from the canteen such as hot dogs, donuts, cookies and pies, i dont think ive ever actually seen him with fruit or veg in his hand before. This gets me massivly confused as i used to be the fat kid, but ive worked hard into getting into good shape by consistently exercising 6 times a week, cutting all sugary, soda and take-away out of my diet and eating nothing but fruit, veg, bread, nuts and home-made cooking from my mum, and im in nowhere near good shape as him. Ive worked hard to become alot healthier than this time last year, but he just doesnt seem to try at all and still looks better than me. My question is why is this so and will this come back to bite him in this **** once hes not a teenager anymore and loses his metabolisms, will i be benifitted more with my healthy lifestyle in the long run? Im not putting anything nagainst him and his family im just way confused and curious, cheers