This is such a broken record question. And the answer is always the same.

If you suck dick or get your dick sucked by a man you are NOT straight. Unless you're blindfolded and have no clue it's a dude doing it. But if you're looking right at him and showing affection for it then you are bisexual. Just deal with it and accept it. Being in denial and blurring the lines of what is bisexual, what is straight, what is gay doesn't work. Because no straight man would allow a man to slob him down.