My wife KK is fully aware of my bisexuality. Setting aside early experiences, my initial bi/cuck excursions were during the days I trawled Craig’s List looking for illicit sexual encounters.
After we transitioned to the hot wife thing, male-male contact became inevitable, unavoidable during some encounters - the trite “crossing of swords,” even if there is no intent.
I was not averse to that kind of contact, even though early I did not initiate it explicitly. KK was present, a witness, so there’s no denying the male-male contact, or one another’s reaction to it.
KK herself is fascinated by gay and bisexual men. She loves watching a man masturbate, and she loves watching two or more men having sex.
One of my more memorable early bi experiences with KK was during a threesome. KK was on her back, her head on a pillow, mouth wide, licking, swirling, flicking her tongue lasciviously. Me and the other guy were stroking our own cocks, nearly tip-to-tip, almost touching. Then it happened. My cock-head touched his, and instinct took over. We started frotting, rubbing our cock-heads together. It was over in minutes, jets, a gusher of cum from the sensation.
From then on, I was more often an instigator.