Where some people see a creature with an unusual body or interesting behavior and find it wondrous, my mind goes elsewhere. For those unfamiliar, ribbon worms are a group of marine worms with a long, branching proboscis that they can quickly extend from their mouths to feed. When fully extended, their mouthparts look almost like a tree with a central, thicker stalk that divides into many smaller protrusions that web outward to capture pretty before pulling it back into the worm. And I want nothing more than to feel one probe deep into my urethra.
My day at the beach has gone from mundane to significantly more interesting after I discover a strange, reddish worm over a foot long and wider than my thumb. It creeps along the damp rocks where I'm sitting until suddenly it begins heading towards me, crawling up my leg with enthusiasm and making its way up my swimming trunks. My heart drops in fear, but anticipation for what it might do keeps me from acting, and I wait. The worm works its way up until it finds the head of my penis, and I frown slightly at what feels like it lining its head up with the opening of my urethra. It pauses, and I hold my breath.
Suddenly I feel the sensation of something being rapidly forced down my cock, invading my body, and my breathing catches as whatever it is pushes through my prostate before I feel the bizarre sensation of my bladder walls being covered with dozens of probing tendrils. I quickly pull the waistband of my trunks away, expecting to see the worm having disappeared, but instead I see it just as it had been, its mouth kissing my urethral opening. Just as suddenly it retracts its mouthparts, and I realize that although the worm itself seems to have no interest in entering my body, it must be forcing something inside me.
I bite my lip as I wait and watch, wanting to feel that indescribable pleasure again. The creature tenses and I see a bulge build just behind its head, and then just as before it releases the built up tension, pushing its proboscis down my urethra and into my prostate. But this time is different. My mouth opens in a silent gasp as its mouthparts force their way down my vas deferens, deeper, deeper, until it reaches my testicles where they begin branching out into their lobules, scooping up my sperm before retreating. The worm must have enjoyed its newfound meal, as this time there's no pause before it extends its proboscis again, dipping into my genitals to feast on my cum.
It forces its way into my body again and again, and with each invasion the pleasure grows until it finally overwhelms me. I cum, my muscles working to pump out a load that isn't there, my guest having already pulled every drop out of me. My dry orgasm finally subsides, leaving me feeling spent and delightfully empty as my guest removes itself and departs.
