(Kind of made my own species somewhat? I liked the idea at least. I used ChatGPT for the picture.)

(DISCLAIMER: The Deckreavers are wild and feral so there can be some non-cons, violence, bloodshed. But you can tame them and it be more consensual and more wholesome!)

Deckreaver is a male quadrupedal aquatic creature. Standing at about 6 feet tall at the shoulder (on all fours by the way. A big boi) and about 15.5 feet long from snout to tail. Their body reads like a single continuous weapon from head to toe. Its head sits on a thick, forward-leaning neck: a broad, aquatic dragonlike skull with a wide open mouth, rows of sharp white teeth, long dark plum purple forked tongue, and a face dominated by glowing yellow slit-pupils that make the creature look permanently locked on. Light-green spined frills and crown points rise along the top of the skull and upper neck, curving backward into layered ridges so the head silhouette flares like a threat display. The front of its torso is heavy and compact, swelling into a barrel-like midsection that feels strongest through the shoulders and upper chest, while the body afterward smoothly arches into a long, muscular serpentine run. Along the upper back, stacked dorsal fins and spines form a jagged armored ridge that follows the curve of its spine—taller and more pronounced near the forebody, then tapering into thinner plates as they trail toward mid-back. The shoulders lead into webbed and clawed forelimbs that extend forward in a bracing, grappling posture; each limb ends in dark, sharply pointed claws that look built to hook and hold onto deck surfaces, ropes, clothing, and flesh rather than merely grasp. Its underside stays darker and more shadowed, emphasizing the heavy front mass and the arced, dive-ready shape. The tail begins thick at the base, then lengthens into a powerful, flexible run with darker banding/striping that highlights the muscle zones; it ends in a broad, fin-like paddle that functions as both propulsion assistance and a stabilizing brace when the body commits to contact. Overall the coloration stays rooted in deep green and olive green, with yellow-green/light-green highlights tracing the edges of its spines, fins, and frill structures so every blade-like geometry remains crisp against teal-blue water, making its entire body—from glowing head crown down through the foreclaws and into the banded tail paddle—clearly legible as a predator designed to lunge upward from the sea, clamp down, pin, and retreat back into the water to drown and feast.

Their style of hunting is what you call “The Port Analyst”—a clever, observant, calculating predator that treats ships and dock life like a repeating puzzle. It doesn’t charge blindly; it watches the rhythm of movement from the edge of the water, tracking who strays too close, who lags behind the group, and which moments create confusion—especially near rails, gangplanks, and dark corners where sound carries oddly. Its predatory intelligence shows in how it positions itself: it holds just out of easy reach until the target presents a clean opportunity, then launches with sudden, committed force, using its grappling posture to turn a mistake into a loss of balance for its victim. Deckreaver is voracious in the practical sense: it feeds whenever it can secure a fast, dependable outcome, and it prefers patterns that produce repeatable results around ports rather than exhausting effort in open water. After a successful snatch, it evaluates whether the environment has changed—more lights, more guards, louder noise, tighter crowds—and it adjusts by pulling back into the sea before becoming pinned by human attention. Its “personality” is cold and methodical: it appears to learn without emotion, remembering routes and behaviors through repeated encounters, exploiting loneliness, delays, and the instinctive scatter of people at the waterline.

Their genitalia is a leathery half sheath between their legs and testes that are always internal like a reptile and or marine creature (internal balls). When aroused, their dark plum purple emerges from their sheath, partially reptilian-like but mostly dolphin-like shaft. 3 feet of tapered and prehensile that moves as if it has a mind of it’s own. (Big creature means a hung creature.) It is slimy and oily to the touch, semi-smooth in appearance with the backside having ridges for stimulation and little soft barbs all over for more stimulation. There is NO knot to tie with partners. He does have a preputial ring though.