feeling a bit embarrassed as you fill your brief with your cum from the pleasurable experience that you were kneeling back on one of the boxes while feeling satisfied when you reached your peak. you didn't even try to stop it while you masturbated furiously as you were soon letting out loud moans of excitement and pleasure that you were even breathing heavily, panting even. casually calming down from what you just did that you didn't notice something else was happening till later.
"ah man, that was intense! still, these briefs are nice and everything, but all good things has to end at some point of time.why do they call these beast briefs anyways? they are just underwear." you said as you then was about to get off the box you were sitting on when you suddenly felt a swarming pain in you gut that it felt like you had a cramp there. while this was happening that fur was traveling from your crotch area and across your body.
"what the hell?!" you said shocked that Wherever the fur touches was also bringing more changes to your body. slowly growing larger and more muscular that it soon was reaching down to your feet as Your legs quickly become completely canine, causing them to stretch and form into hybrid dog leg. the same thing was also happening to your feet at the time while making them into hybrid dog feet/paws, still allowing you to still stand bipedal as A soft, fleshy feeling was forming at the paws that indicating paw pads were growing in next.
Although obscured by the briefs that you were stun by what your legs have become while patches of fur reaches your ass, causing you to roll over onto the box as your butt cheeks begin to separate for A small tail to force itself out through a hole in the briefs. "well, that would enplane why they're called beast briefs. I have a tail and what looks like to be german shepherd leg. what now, ahhhhh." you said as you then felt Your balls became enveloped by the smooth, brown fur, causing the skin above it to thicken and stretch into a sheathe for your cock that Your cock also begins to take in the changes, becoming fleshier and bright red, tapering at the tip and swelling at the base, becoming a recognizable red rocket.
feeling a bit horny by this, you start to grip yourself and started to masturbate furiously and loudly again while the fur fully covered your torso. feeling it dribble precum out onto your briefs that next up was your arms as fur soon reaches to your hands. Along with the fur, your fingers and palms begin thickening until they resembled a hybrid mix between hands and paws as well. Like with your feet, soft dark paw pads push through your fingers and palms.
You look kind of bizarre with only the body of an anthro german shepherd's body and your head still human that it doesn't last long as the fur Finally reaches up to your neck. As the fur travels and cloaks your head that your features of tour face begins to shift around. With the fur, your nose and mouth begin pushing outward into the shape of a canine muzzle that your teeth sharpened into fangs. Your nose shrinks in size but also thickens while becoming wet and leathery that even your tongue rolls out of your mouth, becoming flatter than it used to be.
Your pupils also begin dilating, causing your rounder eyes to appear darker, if not nearly a beady black while fur was travels up the sides of your head to your ears. Soon they are traveling further up your head, becoming pointed and thinner while the fur begins covering the inside of your ears. soon, your head resembles a german shepherd that your human hair recedes into your head as it was soon almost impossible to tell you were even human.
proceeding to jack off your new canine equipment that once you reached climax with your erect cock is where you have fully changed into a anthro german shepherd before you even get a chance to notice your changes. You rush over to the mirror to see your new form. Greeted by your new eyes piercing through the dark room that you started to admire the sexual beast of perfection you have become, feeling your cock stand on end while it was pushing against your briefs. as you stare at your new furry body that it almost caused you to jump in surprise as the shock turned into pleasure.
Before long, however, your face turns from glee into fear as you decided to looking down when your canine eyes come into contact with the package. now noticing the previously absent label on it that it read, 'The German Pack'. If seen earlier, you would have insinuated it was the name of a specific line of Beast Briefs, but now you know it's true meaning: the bundle was to create his own pack of anthro german shepherds. this mansion had some secrets to hide that you just stand there nearly terrified of what secrets it holds, since you already found one.
gathering up your discarded clothing that one thing was for sure, you can't go back home while looking like this. "That's it," you think to yourself, "I either need to find out what's going on here, or I might end up being something that i'm not." what do you do now?