Challenge your abs, hip flexors, and even the neck musculature with this combo exercise. Simply maintain the half sit-up position while performing flyes.
Anchor your feet and lean back until you feel your abs engage. You can use a lighter weight and do the exercise in a timed manner for 60 seconds, or use heavier weights and go for 10-15 reps. Keep your spine and neck as neutral as possible.
Most of us poor slobs have jobs so we don't have the luxury of doing two-a-days, but we figure since it's summer there are a bunch of feckless college students out there doing one bong hit after another who just might be able to take advantage of this program.