I'm mostly straight, and am married to a woman, but have always had a guilty bicurious streak that I've never acted on.

I occasionally fap to gay porn, but am rarely tempted by any guys I know IRL, with one big exception... my step-son.

He's my wife's eldest from her previous marriage, a very attractive twink, gay (though still in the closet to most people), and has had an obvious crush on me ever since he hit puberty. I didn't take his crush seriously at first, just thought it was kinda of adorable but pretended to be oblivious to avoid making things awkward. But then he grew up and filled out and... honestly, if he'd ever tried to make a move on me in the last couple years, I don't know if my self-control would've held up.