13 years old 100 kg, want to lose weight before summer. ....
Hmm ~ ~ I'm also helping my best friend lose weight now! You should be in grade one! I also study in junior high school! It's your senior Your first-year weight 100 Jin, a little. You can do 50 sit-ups before going to bed every night, which can reduce your abdomen! If you reduce your thighs, you can do 50 standing squats every day. Doing it for a long time will be effective! Very clever! My best friend lost his abdomen and legs! I'm not lying to you!