Cum Fetish
Cum fetish is an eroticism centered on semen itself — most commonly 'cum on body' (COB), ejaculating onto a partner's body, breasts, or face rather than inside them. The visual of the finish, and the act of 'marking' a partner with it, is the core turn-on. Widely popularised by pornography, where climaxing on the body is a staple, it's become a common, mainstream fantasy. It overlaps with related interests like facials, cum play, and cum eating. For many it's as much about the imagery and taboo as the fluid.
The appeal blends the visual spectacle of the finish, a sense of claiming or 'marking' a partner, and the taboo charge semen still carries. For the receiver, being finished on can feel submissive, desired, or deliciously dirty.
Instead of finishing inside, the partner ejaculates onto the body — breasts, stomach, back, or face (a 'facial') — sometimes rubbing it in or playing with it afterward. It's often the planned climax of a scene, set up with positioning and dirty talk.
Low-risk, with one caution: semen in the eyes stings and can transmit infections, so avoid the eyes or keep them closed for facials. Standard STI awareness applies, since this involves fluids on skin and near mucous membranes.