I'm 14 years old and probably about 5'7"ish and probably between 100-105 lbs or so. As you can imagine, I'm skinny. :P

So, I don't have any weights, workout machines, etc ( ) , but I was really hoping to put on some muscle this summer. So can anyone maybe give me a routine that I could do throughout the summer to maybe start gaining some weight and muscle? I hate being so skinny, but understand that my body just might not be developing fast muscle wise because of puberty. But might as well as jump start it, eh? :P

I also have a pool and am planning on doing some laps and whatnot. And lastly, we may be getting a cousins old workout machine this fall, so hopefully I will be in shape to start using that. I think its a Bodygear 30 or g30 or something. So, any advice?

Nobody has anything?

Im no expert mate, but try the bodyweight training section for routines without any equipment.

Hope that heps a bit .

You can't put on any muscle without resistance training. You need weights.

Im sorry mate but your wrong there. Of course you can put on muscle with body weight training.

Dermo's right - pushups, pullups, lunges, farmer's walk, etc.