Does it sound gay for a guy to make a comment about "sucking cock"?

He's probably gay and that was his subtle way of advertising the fact

You ever heard of sarcasm, non? Why can't that also be a distinct possibility? An absence of an emoticon doesn't rule that theory out. Maybe he has a dry and boorish sense of humor?

In golf when you are playing a match with a partner against two other golfers...and a long putt is needed to win or halve a hole...one partner might say to the putting partner, "If you make that putt, I'll blow ya."

If the putt is made...no blow job is expected or given.

Just guy talk.

One golfer to another: "I love blowjobs."

The other golfer: "Getting 'em or giving 'em?"

He does make it sound like a mouth full of cock would be a good thing to have, doesn't he.

Many straight guys, who are confident about their sexuality, and who don't feel the need to prove anything or steer peoples perceptions in any particular direction make jokes like that. There is a guy I work with who is as straight as anyone I have ever met, he was talking about a new Apple phone that he likes and he said "If it was a guy I'd suck its cock!" (He's a fanboi) I'd be more inclined to wonder about your sexuality, given that you have thought about this and posted on a web forum about it. Do you have feelings for this guy?

Exactly.

Don't knock it if you haven't tried it.

Obviously, that was an observation; not a knock.

Yes, I do like this guy. That's why I'm curious if some of his behavior might be a sign he is gay. He makes a lot of innuendo. Just trying to figure it out, because he is hot and I like him. But I don't want to insult him.

I was joking; like if somebody said "I'd hate to be eaten alive by piranha fish" you might say that. Suck a man's cock? Eeeewwww!

However...

http://www.theonion.com/articles/why-do-all-these-homosexuals-keep-sucking-my-cock,10861/