for me .. getting off with a guy is sort of a "guys night out" type of thing. I don't deer hunt, or watch sports endlessly but rather a good bj at the gym or getting off with guys I've enjoyed. I have never looked at it as cheating oddly enough. With a woman, I would and while i find woman attractive, would never do anything with them as that to me is really cheating on my wife where with a guy, its just a "guy thing."
now with that said, a guy did blackmail me into telling my wife or paying him off and it has been a really hard year for us. I've not hooked up with a guy since and while I have a desire, I have avoided situations that would make it easy. Dropped gym membership to avoid sauna, hot tub, open showers and such which are total temptation. Travel and stay at hotels without a bar and such things. My wife and I initially played with more toys, she got a strap on, tried anal, and its been nice but every day is day of healing that never had to be if it wasn't for me. I hate what I've done to her and somewhat envy the guys married to girls that play with them but you know, its just all confusing at times. It will never be the same between us but that may not be all that bad in the long run but for now, day by day and clearly, sex with another person regardless of sex is cheating no matter how you justify it in your mind.
So, is checking out this site, and looking at some video and pictures cheating? I don't know but I'm only touching her and myself so for me, that's a good start.