Chemsex: harm reduction without shame
Chemsex, in gay and bisexual men's scenes, usually means sex while using stimulant or disinhibiting drugs that can stretch a session for hours, often in a group, often with apps in the background. This page will not tell you how to get drugs. It will not moralise you out of the room. It will name the main risks and the harm-reduction moves that actually keep men alive and able to consent.
What we are talking about
The pattern matters more than a brand name: long sessions, little sleep, stacked substances, sex with people you may not remember, and a comedown that wrecks the working week. Some men use rarely and stop. Some men find the session has become the only way they can have sex or feel wanted.
If that second sentence landed, you already know this is not only a party. It is a health and consent problem with a social scene attached.
The risks that show up in clinics and morgues
Overdose and mixing (including with alcohol or HIV meds), passing out, HIV and other STIs, assault, theft, psychosis, and a slide into using when you did not plan to. Consent collapses when someone is too high to agree, too high to refuse, or too high to remember. Consent, alcohol, and sex applies here even harder.
If a man cannot speak a clear yes, he cannot consent. If you cannot speak one, you should not be in a sexual situation. That is the line.
Harm reduction if you use, or if he does
Do not use alone. Tell a trusted person where you are. Keep HIV treatment or PrEP in the plan, not as an afterthought. Eat, drink water, sleep when you can. Do not mix blindly. Have a way to leave. Agree in advance that any one of you can stop the session. Get tested on a short cycle. How often to get STI tested is the practical list.
If a partner uses and you do not, you still need a boundary: whether you stay, whether sex happens, whether you are being asked to chase him across the city at 4 a.m. Love is not a detox programme. You are allowed to leave the room.
When it is becoming the problem
Missing work, needing more to feel anything, sex that only happens on chems, friends only from sessions, fear of being without it. Those are signs to get help from people who already work with gay and bisexual men and substance use, not from a general lecture. Sexual health clinics, LGBT-competent drug services, and peer programmes exist in many cities. Ask for them by name.
If you are in immediate medical danger, use local emergency services. If you are in a mental health crisis, see If you are in crisis, how to get help. Unite Gay Network can be community, not a clinic: join when you want men who will not fake shock. Shame keeps men using in secret. We are not in the shame business.