Pig Rubber

You loved the bulging look of rubber thongs. There was something about the smooth sheen of the material and the elastic tightness against the skin that drove you crazy. Not to mention how well it supported the junk it contained. You couldn't help but fantasize how it would look on you. You hoped to accentuate your own package when you bought one, wanting to look well endowed for hungry bottoms. 

You should have paid more attention to the store you had patroned. Within the week a package appeared with the branding on the surface, "Pig Rubber". You couldn't wait to try it on. 

You stripped the moment you had your hands on the material. You were struggling to get it up your legs a moment later, the rubber gripping your skin and fighting your strength until you finally got it into place. 

The piece felt surprisingly comfortable, wrapping your sides and rear nicely. Your jewels sat contained in the pouch, pushed out by the tailor. You smiled once you got a look in the mirror. You appeared much better endowed than you were expecting, the glossy black shine taking up space on your skin. It allowed your thighs to move freely, no tightness or cutting into your skin that you thought it would have. Until there was.

You guessed you had it on too long or maybe it was too small until you saw your bulge growing. You weren't sure at first, but as soon you placed your palm around it, you could feel the rubber swelling like a balloon. Then you realized it wasn't the only thing swelling.

Your body was growing around the thong too. You watched as flesh pushed out at your waist, your ass showing below the divots in your hips. Your chest had begun to grow too, shoving itself further in front of you with mass until you had two plump weighty tits forcing you to lean back. It was hard to move as muscles appeared like bubbles across your skin. Your figure had grown significantly heavier in the span of a few seconds.

You looked like an ape to yourself in the mirror. Your body had at least doubled in size, package included. Your bulge was hanging a good way between your thighs, surrounded by thick trunks that you could no longer stand straight with. Your torso was a thick keg, a healthy layer of fat covering a sturdy core that held up monumental shoulders. You stated in awe feeling yourself up, growing hard at the sight.

But not hard enough. You could feel your blood pumping to your member, making it grow thicker, but not stiff. You felt something else though, an itch in your ass. A want. You didn't know how to describe it, but as you flexed your rear, you could feel healthy sparks of pleasure jumping from your groin, forcing drips of precum from your useless tool.

Your stomach sank. Your dick was useless now. Instead, you had the hungry thick bottom of a pig