Do you have a Sexually Dom Wife. I had to add Sexually because I havent met too many wives that weren't the Doms in their marraiges. My wife has been a dom wife and fag hag for decades, which has led me down this path of Bi experiences. Would your wife Approve or disapprove? Is it difficult to keep it a secret?
My wife was definitely a dom, and she knew of my bi side from the beginning she encouraged and enjoyed it. She arranged most of our threesomes, MMF and FFM. She liked pushing the envelope with me, putting me in situations that challenged me to proceed or back away. At this point I would say don't back away, always proceed and try something new.
You have stay firm in your commitment or the party is over. Same here, She would challenge me, trying to see where the line was. If she was up for it, I'm in.
My gf definitely gets off on what she says is "power" that I am so turned on by her I will do taboo things like lick her after another man has cum in her. She says she finds this very thrilling.
Nothing wrong with eating a fresh creampie. "Taboo", maybe, but just as fun, and even more kinky than getting another guy's cum directly from the source... That is, unless your gf encourages and cheers you on to suck another man's dick until he cums in your mouth. Then it might be a toss up. Personally though, I actually think it's even more kinky, and as you say "taboo" to eat another guy's cum from a woman.
That is what my wife thought when she allowed me to finger and eat her pussy after she had previously fucked another guy. She didn't admit it until years later. That conversation turned into a wild sex romp, where I fucked her and ate her dripping creampie. Years later, a few years ago I had relented and messed around with our old gay friend. My wife was both Audience and Cheering squad. She watched me take my first mouthful of cum, my first facial and first anal. Never say Never