I'm noticed muscle growth in my legs and arms but after doing squats and deadlifts and weighted lunges for 8 weeks my butt seems to be staying flat. I'm thin so it's not fat flat, just skinny flat... Advice? I'm working my way up with weight and squatting / deadlifts mostly @ 45 lbs now and lunges w/ 15-20 lb dumbells. My thighs and calves are noticeably bigger but no butt... help?
Thanks,
Cat