CIM stands for cum in mouth, indicating that the client ejaculates in the other person's mouth. It is advertising shorthand rather than a defined service, and it is agreed directly in advance.
Initialism of cum in mouth; indicates that the client ejaculates in their mouth.
This is advertising shorthand, and the distinction matters more than it looks. An expansion is not a specification: knowing what the letters stand for tells you the emphasis being advertised, not what any individual offers, on what terms, or whether they offer it at all. Two listings using the same letters may mean quite different bookings.
CIM is attested alongside owo in a corpus study of a UK sex-work forum, where the two appear together as the terms in which unprotected oral sex is discussed. They are nonetheless separate claims about separate things — one is about a condom, the other about ejaculation — and a listing carrying one is not offering the other.
Because the term describes a specific act rather than a mood, it is often assumed to be unambiguous. It is not: whether it is offered, and on what terms, is the individual's decision in every case.
Terms are agreed directly and in advance in every case; we do not publish rates as fact anywhere on this site. Country rules differ — see our legal status hub.
Frequently asked questions
What does CIM stand for?
Cum in mouth. It indicates that the client ejaculates in the other person's mouth.
Is CIM the same as OWO?
No. OWO — oral without — is about oral sex performed without a condom. CIM is about ejaculation in the mouth. They are advertised separately and neither implies the other.
Is CIM a defined service?
No. It is advertising shorthand, and whether it is offered at all is the individual's decision, agreed directly in advance.