Clothed Female, Naked Male is an erotic situation that involves one or more nude men and one or more clothed women. Often abbreviated as CFNM, various different activities can be involved in Clothed Female, Naked Male scenes, but they are not all inherently sexual.
The common thread is that the women involved stay clothed, even when they participate in sexual activities, and the men are always nude. While some women will wear dominatrix-style clothing in CFNM scenarios, more frequently women are encouraged to wear common, everyday outfits to heighten the casual nudity of the male participants.
When defined specifically as Clothed Female, Naked Male, the situation is explicitly gendered, as female- and male-identifying folks in those roles. However, each participant's sexuality is not explicit, as female dominants may not be exclusively heterosexual and they may may consensually suggest or ask for the nude men to perform sexual acts on each other as long as it enjoyable to all parties involved. There are also related variants on this same theme, particularly, Clothed Male, Naked Female.
As the gendered name suggests, these parties have strong ties to the gender binary. Of course, some non-binary folks may enjoy these parties and should be included as well- which may require titling the party as something more gender-expansive.
Non-sexual CFNM situations can involve men serving women, men giving women massages, or cocktail parties of casual conversation. Exhibitionism and voyeurism are a strong factor in this paraphilia, and the sight of a naked man, or the knowledge of being seen naked can be highly satisfying.
When sex is involved in Clothed Female, Naked Male scenes, it is more often linked to BDSM. The situations frequently involve varying degrees of female domination, power exchange and humiliation. The clothed female can inspect and degrade the naked men’s genitals, administer punishments such as spanking, require worship, demand erections, force masturbation and orgasms and many other sexual acts the naked males eagerly consent to.
Denial is also a popular technique in CFNM scenes. Male participants may be edged, but not allowed to orgasm, by dominant females, other submissive males or themselves. The men may also not be touched at all.
Ensuring consent is constantly honored is very important. The innate power structure of the situation doesn't change the rules of consent.