So, should you cut or bulk first if you are skinny fat? You should bulk first if you are skinny fat. A 10% caloric surplus is optimal to build muscle while ensuring you don't put on a lot of excess body fat. Stay in a surplus for a minimum of 4 months and then begin a slow, gradual cut. . . . . . . . Free photos and videos credits to pexel.com pixabay.com Thank you