Been fattened up intentionally?

I'm an 18 year old male, I come from a farming family and my dad has spent his whole life raising and fattening up livestock. When I was 16 I was 140lbs, with a 30" waist. I'm now 207lbs and my belly has fattened up to 40.8". I have 'enjoyed' the experience and like my fat belly, why? Also my father seems to get a kick out of seeing me shirtless (usually when I'm midnight snacking) encouraging me to have an extra snack or two and watches my belly and fattening body. Is there a chance that somehow in his head he's decided to fatten me more maybe with or without realising, he has spent his life fattening livestock after all and says he likes some meat on the bones? I'm not the lightest of people, I'm almost 7 inches fatter and 41lbs heavier and am unsure what's happening, I am a gainer, but not sure why I've got this reaction from him.