When did you consider the Bi Option?

Probably 15 years ago, one of my wife’s former boyfriends, now gay, visited us from out of town. She hadn’t seen him in years, he was very nice. My wife told me after he’d left that if it hadn’t been for our then grade-school children having been there, that we would have had a threesome, and I would have gotten to fuck him while he fucked her. And then he would have fucked me while I fucked her. Somehow we’ve never explored that further, but I remember our sex the night she told me that was pretty epic.