Here's why this pattern emerges so consistently:

### Higher rates of bisexual identification and curiosity in cuckold communities

- Informal but large-scale surveys of self-identified cuckolds/hotwife enthusiasts (e.g., one with 486 men from cuckold/hotwife sites) found that **~30% openly identified as bisexual**, **~18% as bi-curious**, and another **~18% said they'd like to be "forced" into bisexual behavior**—totaling around **65–70%** with some level of bisexual interest or openness. This is dramatically higher than the general male population (where ~2–6% identify as bisexual in most surveys).

- In practicing cuckold groups, the numbers skew even higher toward bisexual or bi-curious self-labeling compared to pure fantasy groups, where more men frame it as something they'd only do if "forced" (likely due to stigma around male same-sex attraction).

### Psychological and fantasy overlap

- Experts like David Ley (author of *Insatiable Wives*) and Justin Lehmiller (from large fantasy surveys) describe **"vicarious bisexuality"** or **"bisexuality by proxy"** as a common driver: The man uses his wife's body as a "vehicle" to indirectly engage with another man's sexuality—e.g., fascination with the other man's penis size, watching penetration, cleanup fantasies (creampie eating), or "forced bi" play where the wife encourages him to service the bull. This lets him explore male-male attraction without directly confronting a bisexual or gay identity.

- Lehmiller's work (e.g., in *Tell Me What You Want*) shows that cuckolding fantasies correlate with broader openness to non-monogamy, sensation-seeking, and overlapping kinks like voyeurism/group sex—traits more common in bisexual and non-heterosexual men. Gay and bisexual men actually report **higher rates** of cuckolding fantasies than straight men overall.

### Community and anecdotal patterns

- In cuckold/hotwife forums, Reddit threads (e.g., r/Swingers, r/BisexualMen), and practitioner polls, a recurring theme is that male bisexuality appears **higher in cuckolding** than in general swinging or the broader population. Many men report starting as "straight" but discovering bi-curiosity through the kink—e.g., fixating on well-endowed "bulls," enjoying humiliation tied to penis comparison, or transitioning to direct bi play.

- Therapists and researchers note that for some, the cuckold dynamic serves as a safer, heterosexually framed entry point to male-male desire: The focus stays on the wife's pleasure, so it feels "straight," even as the man derives arousal from the other man's body/role.

### Not universal, but a strong tendency

Not every straight cuckold man is secretly bi—some are purely into the humiliation, jealousy-turned-arousal, voyeurism, or compersion (joy at partner's pleasure) without any male attraction. Evolutionary psych angles (sperm competition arousal) or BDSM submission explain it for others without needing a bi component.

But when you look at the data from those who actually live the lifestyle (not just fantasize), the bisexual/bi-curious overlap is striking and far exceeds chance. Strict heterosexuality doesn't usually produce such intense, recurring focus on other men's sexual attributes or indirect engagement with them.

If a man identifies as straight but pursues cuckolding heavily—especially with elements like penis worship, cleanup, or "encouraged bi"—it's reasonable to view his orientation as more fluid or "heteroflexible" than rigidly straight. Sexuality exists on a spectrum, and this kink often reveals where someone sits closer to the middle. Many in the community embrace that without re-labeling themselves gay.

(http://www.autoadmit.com/thread.php?thread_id=5848584&forum_id=2Elisa#49761348)