You shudder as the tingling sensation grows inside of you. You push your arms out, stretching and shaking your hands, trying to dislodge the tingly feeling as it spreads through your whole body.
You gasp as you feel what must be every muscle in your body start to contract and release... a stretching sensation goes through you... and then, just as quickly as it came, it's gone. But it's left some very permanent impressions on you.
You look down at your chest and belly and immediately you can see more definition in your muscle tone. Your pecs are showing, as is the slight definitions of an early six-pack on your stomach. Your arms feel bigger, more muscular as you flex them. And you can tell your legs have definitely grown thicker and more powerful.
You stand up and stagger to the bathroom sink, nearly slipping on a puddle of cum. You stare at yourself in the mirror. Your neck is thicker, your shoulders hulked up somewhat. It's not too big of a change, but it's as if you'd gained six months of working out in the gym in only a few moments...
Your cock starts to harden again as you watch yourself, admiring your physique. You turn to the side and watch as your cock juts out hugely, drooping over somewhat again. Your ass looks fantastic - nice and hard.
Below your shaft, your huge balls hang down nice and low - each side of the sac is big as an apple. You can't help but think how good you look in profile in the reflection of the mirror - hard, smooth body, an enormous cock, big balls...
You slide your paws down your sticky chest and belly, grinning, before you grip your cock again. It feels delicious, to hold that thick, huge shaft in both of your hands, unable to get your whole hand around it.
You decide to put off worrying about what happens next for at least a little while longer... you're starting to feel the pressure build up again inside your heavy balls...