I'm not one to treat a human being like a piece of meat, but man, those pecs are just fantastic! Somebody's been hitting up the gym! *Looks at one's own flabby stomach, proceed to crouch in the corner in shame*�

SEE ALSO: ILLIT's creative director shares a middle finger photo on Instagram speculated to be directed at Min Hee Jin

Still photos of Siwon grinning bashfully half-naked were released on October 27 by 'She Was Pretty,' forecasting the episodes which will air this Wednesday and Thursday at 10pm (KST). Better tune in to catch Siwon and his abs in action!�