Cock worship
Cock worship is devoted, adoring attention paid to a penis — stroking, licking, sucking, kissing, and praising it as an object of reverence. Anyone can take part regardless of gender or orientation, as either the person with the cock or the one attending to it, and it applies to strap-ons too, not just biological anatomy. It can be tender, sensual play or slot into a dominant/submissive dynamic, sometimes edged with worship, service, or degradation. The focus is on treating the cock as something to be admired and served. It's the male-anatomy counterpart to pussy or breast worship.
For the worshipper there's submission and devotion in serving without demanding anything back; for the receiver, being adored so completely is both flattering and intensely pleasurable. The 'reverence' framing turns ordinary oral or manual play into something charged.
The worshipper lavishes slow, attentive oral and manual attention on the cock — licking, kissing, sucking, stroking — often with spoken praise, while the receiver relaxes or directs. It can be gentle adoration or part of a fuller power-exchange scene.
Low-risk. Mind teeth, watch pressure, and use safer-sex barriers if fluids are shared. If it's part of a D/s scene, the usual consent and check-ins apply.