This is from the tweet of anpan0512 and it came from KBS Secret.
Wow! His 6-packs is back! Honestly, after awhile after seeing this it came to me that it was quite surprising to see pose like this provocatively. Well that's because I've never actually seen him pose like this in private before. He doesn't post photos like this of himself. He's only doing sexy stuffs when on stage but definitely not in private. Maybe he was drunk?! LOL. And maybe Saengie was the one who took this! Hahaha!