The remnants of the tin can smacked against the bedroom wall, spurting out the last few droplets of fruity liquid left inside. It clattered along the floor, right as it struck against two other recently-emptied cans of Hermit Energy Drink, just as a massive kangaroo foot gave the trio a good kick across the floor.

“Come on already,” Ken whined as he knelt down next to his bed, cracking open the mini-fridge that acted as his impromptu nightstand and grabbing a fourth can. “I’m barely feeling awake as it is and I’ve got Miles’s birthday party to get to in an hour. Where the hell is the energy in these things, anyway?”

The back of the cans stated that they were more caffeine-packed than a standard cup of coffee, but even over the course of the past 20 minutes and constant chugging, Ken wasn’t feeling anything. By now his auburn fur should be practically electrified like the rest of his body, thick kangaroo tail swishing along behind him, while he could get in a few more reps and a shower before the party. Sleeping poorly the night before had thrown off his entire schedule, and considering the soirée itself was supposed to start at 8 PM and last at least seven hours, he didn’t want to be face-down in birthday cake before the fun really started.

Still, the fourth can went down quite easily with a dozen gulps and a single breath. The raspberry flavor was a tasty one, at least, but at that point all the marsupial could do was pray that the energy would kick in eventually.   The majority of his exercise routine would have to wait, but a rep or two with his weights would at least keep him on track. The first set of reps went well enough, but once Ken started up with the second he felt a little bit uneasy. He looked over the weights, making sure that none were loose and that he was working with the 250 pounds he expected. Seeing nothing wrong, he could only scratch his head in surprise. He could have sworn he felt his muscles tingle a bit in his arms.

No matter, he figured. He at least got a little exercise in, as he decided to sit down on his bed for a second. Slipping off his sleek black boxers, he nearly screamed out in ecstasy. For whatever reason his usually-hefty balls had hit something between his legs, almost instantly getting his shaft growing in anticipation.  Never one to shy away from any sort of sexual thrill, Ken raised his muscle-laden right leg up a bit more, just to slip a finger along underneath his sack as he laid on his side. At least this way he could get a good glance in the mirror across from his bed.

The buff male kangaroo, however, wasn’t expecting to see a velvety smooth pussy down there, though, dripping feminine cum excitedly onto the tip of his finger as it brushed past. Before Ken could explore his new opening with his long fingers, a sudden burst of heat and pressure along his chiseled chest made him roll onto the front of his chest. His left hang gripped onto his soft blanket for dear life as the sensation grew all the more, increasing in intensity. Only wiggling on top of his covers was giving him any semblance of relief, and it was minimal at best; in reality it was just exciting his new female anatomy all the more, causing him to drip enthusiastically along the bedspread from his slit, as his cock started to leak precum just as profusely.

Minutes passed. The sheets themselves started to grow all the more damp underneath Ken’s prone form, moving about as his body shook all about in order to quell the inferno rushing across his chest. A few minutes later his hips started jutting upwards into the air, inch-by-inch. If not for the fact that he was all alone in his apartment one could swear he was presenting himself, tail flipping all about while showing off his tight ass in the mirror. It wasn’t so much that Ken was fighting his growing erection any more, but the fact that it refused to stop growing once reaching its usual apex.

Ken only noticed when something was amiss by the time his knees started to lift off of the mattress. Looking downward at his chest, the kangaroo made an important discover. His manhood was nearing the length of a baseball bat, pulsing and throbbing as if his tissue within couldn’t inflate fast enough. Given that his usual four inches of width expanded to a foot-worth of heft, as thick as his athletic thighs, and his cockhead was easily able to hoist the lower half of his body into the air, he had all the more reason to worry.

That wasn’t the sole cause of concern, though. As he looked down the view quickly became obscured as his chest ballooned outward, forming a pair of breasts so massive they would put cantaloupes to shame at a fruit stand. Ken cried out as he started to do a push-up on the bed, trying to flip himself over onto his back to better survey the new come additions to his body. To his shock, four sensitive spots along his chest rang out surprise, sending his lower half into a dual gusher of male and female orgasms alike along his bedding.

The kangaroo’s calves slapped along the pools of rich, musky cum along the comforter as he flipped over. As he struggled to lift his torso up, he finally got a good full view in the mirror; not only was his cock monstrously large, but it was as flexible as if it were flaccid. That still didn’t stop it from surging in the air as fast as his racing heartbeat. Further, his chest had gone from being as fit as an ancient statue of a Greek god to being adorned with two pairs of plump, rotund breasts so full they might never stop jiggling once they get moving.

While most others would be shocked at seeing a lusty, fertile beast staring them right back in the mirror, Ken was barely troubled by that fact. Throwing all caution and care to the wind, he slid his pert backside through the excessive puddles of his jizz still laying near the foot of his bed before bouncing upright onto his own two feet. The roo swayed his hips back and forth, marveling at how much cum was dripping right out of his dick nigh-constantly, right before he hoisted it upwards between his two new pairs of breasts.

Both sets of twins gripped around his shaft with ease, hugging onto his kangaroo meat tightly as he started to lap at the very tip of his cock. His cream tasted magnificent, and he could have sworn that there was a hint of raspberry therein,  but it didn’t matter. All he wanted to do was produce more. By using his hands to massage the sides of all four of his breasts along the ridge of his cock, rolling each of his dirty pillows around his shaft, he started to soak all of them in his thick scent. Minutes passed as he made an absolute mess of his ruddy-colored fur, lavishing in the fact that his cock felt as if it was being caressed by a quartet of silky clouds. 

Just as Ken could feel himself starting to lose control over his gargantuan shaft, he let go of his breasts for a moment just to let his monster drop towards the floor with a soft slap across the soaked carpet. He had almost orgasmed right there, but his male bits were able to ride the edge quite thoroughly.  Ken’s new cunny, on the other hand, had been leaking like a sieve ever since hoisting himself between his breasts. His thighs and calves were thoroughly soaked, his fur matted down with the pure scent of his arousal, with the excess still dripping down to his ankles.

Of course, it was the perfect time to thoroughly test his shaft’s flexibility. Thankfully, his slickened box was more than up to the task.

The roo’s engorged head slid backwards quite easily, and curled upwards so readily it took nothing more than a slight shove to have its massive size slip between his feminine lips. Ken’s velvety depths lapped at its new visitor, welcoming it with fervor as the multiple orgasms get it surrounded with female cum. Every breath Ken took sent his shaft deeper within him still, forcing his legs to adopt a wide stance just to accommodate his exceptional girth. Slowly but surely he could feel his nether region gulp his dick in by the inch on its own volition, equally happy to be filled as much as it wanted to suck the life out of himself. Ken worked his damndest to ride the edge of bliss as long as possible, absentmindedly groping along his nipples as he toyed with his soaked breasts. 

After a particularly large heated spurt of precum, though, the roo could stand waiting no longer. He flooded his new depths without a care in the world, barely noticing that what remained of his flat belly started to push outwards with every passing minute. Molten hot spooge filled every available nook and cranny within him, and as his tunnels were flooded twice over with the throes of passion he could feel only a small trickle of the same heat escape his lips. By the time he could reopen his eyes from the heavenly shock that spread through his entire body, he saw that his stomach swelled out to pregnant proportions, almost as if he were just a few days away from being due. His stomach jiggled as he moved from side-to-side, jiggling in place almost as much as his breasts.

Ken sighed contentedly at the view, right before taking a seat back on the bed with a bit of care. It was a tad tricky as he angled himself just right to ensure that his ass cheeks would be able to keep himself buried deep within his own pussy, even though it was exercising its own vice-like grip. Glancing down at the side of the bed, he noticed a small warning on one of the empty cans, right below the list of ingredient lists. Something about excessive use may cause some unintended gender-based side-effects that may last for upwards of a month. Another can made mention of the condition being particularly contagious for the first 4 hours, and advising that those suffering from too much Hermit should probably consult a doctor.

Ignoring these warnings, the marsupial stood right back up and headed to the shower. Even if Ken rushed now he should just be fashionably late to his otter friend’s party. Besides, after he cleaned up thoroughly, he could probably make a fashion statement by taking the other fresh sheets he had waiting in the closet and using those to whip up a mostly-concealing outfit to wear on the way to the event. 

Besides, by the time he got to Miles’s apartment, there should still be a good 15 minutes worth of infectiousness about his body. May as well let all of his friends decide whether or not they want to enjoy a few extra unexpected party favors, right?