I couldn't believe my eyes!!!!My reactions in chronological order:
I was squeeing!!!!
I was in heaven!!!!
''Ooooh that beauty mark next to his nipple is familiar!I remember it from Karla!''
''Now that's what I call a 100th episode!!!!
''Damn that Enochian symbol!It covers all of his chest''!!!
''Thanks Kripke!I know you did it for the Cas fans!''
Hmmm too much Cas scenes and stripping....someone's gonna die!
Please don't die!!!!

then i had to remind myself to breathe XD

i was like :OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO ... :D

LOL and OMG *faints*_______ flatline. Get the paddles *paddles charging* Clear! XD
I had no idea he was going to do that and when he did I had to rewind it back just to make sure I wasn't dreaming lol

haha :) I was expecting it because of Con spoilers ;) but I was still like DAMN Misha! youz a sexyyybitch! ;D <3

I was like OMG How hot is Cas right now lol he better be back soon

Haha I saw the con spoilers too but I just thought Misha was teasing us xD

"I had to rewind it back just to make sure I wasn't dreaming" LOL <3 <3

At first I was shocked and thought oh my god, but then after he opened his shirt and that god damn enochian symbol was carved into his chest I was a little freaked. It looked like that really hurt and how he did it in the first place. Man Cas is one tough angel.

i still think "ouchie ouchie ouchie" just thinking about it

Yeah. That looks so painful but not for the Tough Nerdy Dude with Wings xD OMG I just thought of Jimmy! I wonder if it hurt him :(

Very amazing moment.

Did not see that coming- but sure as heaven saw it when it did! ;)

well I read spoilers Con too,but really didn't expect that,I thought Misha was just joking.....I was like :OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO­OOO­OOO­OOO­OOO­OOO­OOO­OOO­OOO­OOO­OOO­OOO­OOO­OOO­OOO­OOO­OOO­O and then jumping "Badass badass badass!!!!!!!!!

actually, i was like" oh..poor cas!! he's really hurt... and he's sacrificing his own well-being!!" now i love him even more

what did misha say in the con spoilers about being shirtless ? lol i could imagine it sounding like he was joking XD

I don't know what he actually said this is what I read though:
"- I'm not sure if this was a joke or not, but Misha claims that there's a scene in an upcoming episode where Castiel tears off his shirt."
link

haha that's great XD

When Castiel did that, I was in Happy Town USA. I screamed, rewound, screamed again, and so on. I think I stopped breathing for a few minutes... Just thinking about it.... *faints* lol.

*waves some smelling salts past cas4ever's face*

can anyone tell me what episode is that? please!

100th ep: "Point of No Return." I didn't see it coming and was wowed! I was like, "When did he do that? Oh, that's what the boxcutter was for!" When he took of his tie before hand, I was thinking he was about to go kick some angel butt and maybe lose the trenchcoat. He lost the trenchcoat alright and his shirt. Wonderful (and painful)! Can't wait for Cas to get back!

At first i was shocked, then had to watch it again, then had to remind myself to breathe!

Well after I was revived I than wondered why they don't show more of Cas shirtless lol.

kool aND SAD cas wouod be in pain T-T

I DIEDDDDDDDDDDDDDDDDDDD
XDDDD LMAO

lmao, how could I not pick this one! But mostly I was like O.o

In fact, I'm prettty sure I'm a ghost that's typing this right now because of it ;)

Lmao!!! I kept rewinding it and then I would just pause and stare at the screen desperate for him to pop out and say hi LMAO