As a matter of fact, that's how I got into bodybuilding. It started as health and fitness with the main goal being to lose weight. I used to weigh 255 as a couch potato. I had done some weights, lost a little weight and then gained it back. I was at 268 then, but a lot of that 13 lbs was muscle because I had done some weights previously, but I may have been just a bit fatter than I was at 255. I watched movies played games, and ate lots of chips, chocolate, fast food and doughnuts. I still watch movies and play games quite a bit. However I also skip the junk food, and lift weights.
I certainly did have issues with social skills, and at one time with women. However I kind of figured out ways to make it work for me, and ended up doing alright with women anyway.
Other than the occasional weight phase in gym, I never lifted until right before I turned 27. Then I gained my weight back, and started over just before turning 28. After a year of nice beginner gains I was hooked on bodybuilding. I'm 35 now, 36 in May. I'm big, but it's not always easy to tell. My arms for example, are only 16", which isn't that big by the numbers, but on a guy with small wrists, they look more like 18. The other problem is when you aren't totally ripped, and have a small frame, you tend to look like a larger framed person that doesn't lift. The loose skin doesn't help either. So I only get stares when I'm completely pumped up.
So that's how a geek gets into bodybuilding. When you think about it, aside from the physical nature of it, bodybuilding is pretty nerdy. Like all the detail that goes into planning meals and workouts, as well as knowing muscles, and which movements use them.
that's a pretty awesome weight loss story, I love hearing about extreme body transformations. I would have been in pretty much the exact same boat as you if it weren't for really good genetics for staying lean. Before I picked up a barbell I did no sports or any types of exercise, and just sat on my arse all day eating crap, watching movies and smoking dope.
Now I'm 50lbs heavier, but put my in a hooded top and I still don't even look like I lift! It's coming though, 200lbs by summer next year is definitely achievable.
And yeah I definitely agree about the nerdy aspects of bodybuilding, which is why people get such a surprise when they realise I'm into it. I'm the laziest, least meticulous person on the planet in all aspects of my life except bodybuilding. I never plan anything, and I struggle with motivation, but I'll be in the gym 4 times a week and eat exactly what I need every day. It's the only discipline I ever show