Why is it when I jerk off to gay porn I don't produce semen at orgasm but when I jerk to straight porn I do

1. The physiology: orgasm and ejaculation are separate but usually linked

Ejaculation has two principal phases—emission (movement of semen into the urethral bulb) and expulsion (muscular contractions that push semen out)—while orgasm is a subjective neurologic event; problems in either phase can produce an orgasm without visible semen (often called a dry orgasm or anejaculation) ^{[2] [1]}. Retrograde ejaculation is one well‑described mechanism in which the bladder neck fails to close and semen goes into the bladder instead of out the penis, producing the sensation of climax without external ejaculate ^{[7] [4]}.

2. Situational and conditioning explanations: why one stimulus but not another

Sexual responses can be conditioned by what a person habitually uses to reach climax, and clinicians note that some men can reliably ejaculate to one stimulus but not another—this is a recognized pattern rather than a mystery of anatomy ^[3]. That means psychological arousal, the specific motor pattern of masturbation, novelty, or learned preference can alter whether emission and expulsion are triggered strongly enough to produce visible semen on any given occasion ^{[3] [1]}.

3. Short‑term, reversible causes: recent ejaculations, testosterone and temporary variability

Semen volume naturally varies day‑to‑day; ejaculating multiple times in a short span reduces volume and can produce an effectively dry orgasm even when sperm production is normal ^{[5] [8]}. Short‑term drops in testosterone or transient physiologic states can also reduce ejaculate volume, and those effects are usually reversible or detectable with testing if persistent ^{[5] [8]}.

4. Medical conditions and drugs that produce dry orgasms regardless of stimulus

Persistent absence of semen at orgasm warrants evaluation because conditions that interrupt sperm production or delivery—azoospermia, nerve damage, certain medications, pelvic surgery, or structural problems of the bladder neck—will cause dry orgasms in all sexual contexts, not selectively with one type of porn ^{[6] [1] [7] [4]}. Some drugs and surgeries specifically affect the bladder sphincter or autonomic nerves that coordinate emission/expulsion ^{[7] [4]}.

5. How to interpret the pattern and what evidence would point to different causes

If the phenomenon is reliably tied to one kind of stimulus (e.g., always no semen with gay porn but present with straight porn), conditioning and situational factors are the most consistent explanation cited in clinical reviews; if it occurs with all arousal types or is accompanied by cloudy urine after climax (sign of retrograde ejaculation), a physical or medication‑related cause is more likely and merits medical testing ^{[3] [7] [4]}. Semen analysis, review of medications, and attention to timing of prior ejaculations are typical first steps recommended in the literature ^{[9] [6]}.

6. Limits of the reporting and final verdict

Available clinical sources document mechanisms that produce dry orgasms and note that sexual conditioning can create stimulus‑specific differences, but they do not present controlled studies specifically comparing porn genre and ejaculatory output, so any claim that orientation of porn by itself causes or rules out a medical problem cannot be made definitively from these sources ^{[1] [3]}. Practically, if the pattern is new, persistent, or accompanied by other symptoms, clinical evaluation (history, medication review, possibly semen analysis or referral to urology) is the evidence‑based path; if it is clearly linked to stimulus and intermittent, learned sexual response or recent ejaculation are the likeliest causes per clinical guidance ^{[1] [3] [5]}.