well umm im relevantly short..and i dont like it.. im real lazy and i couldnt b bothered motivating..whats a good time to exe5rcise and for how long bcoz i want it to make a difference..a few weeks ago i use to ride my bike for 30mins-60mins about 3 days a week and i got to 49 kgs but i couldnt see any difference in my body..and i can swim but its too cold..and i dont want to spend money on the gym and stuff..What are some good Buttocks exercises,.? does anyone know..?