Balros & Echoen Rubs your arms so they grow hearts Fieron gasps a bit, looks at his arms as they have hearts beating on them, they make his arms pulsate and throb which quickly gets the bunderg moaning in arousal, the arms becoming ultra sensitive to your rubbing Balros & Echoen The mutation is quick, but the growth is slow. Building pressure as the hearts grow, muscles twitching as they bulge around a redoubled vascular system. Your forearms visibly beat with the pumps of each heart, the sound thumping in your head. Fieron moans and pants intensely as his senses are practically assaulted with the sound of his own heartbeat, it doesn't take long before the big bunderg cock becomes fully hard, leaking precum in time with each audible beat, his own snout as well curving and erecting, pre leaking from the nostrils, veins bulge and pulse firmly and visibly, increasing the hot pressure of each beat, causing his arms to swell out harder with each intense beat, they soon pump harder and harder with such pleasurable intensity that he's literally brought to the edge of orgasm with each beat. Balros & Echoen As your erection swells, the big battyherm caresses across it... and thumpTHUMP, shi bestows your dick itself with its very own heart. You can feel it inflating your cockveins, pounding and pumping with vigor, even making veins bulge out from the fur of your balls. Your hands and fingers swell larger to deal with the pumping force, arms getting larger as their hearts get -bigger-. Shi brushes your tail to give it a heart too, and then.... two hearts, side by side, grow within your own snout. Their thumps are like thuds, beating within your own face. Fieron the bunderg fidgets violently from the growing hearts all over his body puslating in-sync. His own heart slamming against his chest and bulging intensely while the other hearts continue to pound and pump all over his body. Suddenly he loses control and cum gushes from his nose and cock, at which he finds himself facing an open window as if he was urged to cum onto the streets and onto the people below. Of course many are already getting covered in the corrupted bunderg seed, quickly growing massive hearts all over thier bodies. Soon his arms start to shift and mutate further, in time with his heartbeat which quickly beats faster and faster in his intense lust. Soon the massive hearts on his arms are covered by skin, then brown bat fur, the massive arms becoming two massive herm bats which as soon as their bodies are fully formed, they're quickly pregnant with massive puslating bellies, the bellies themselves must be full of hearts, their cocks also unloading, but all over the bunderg as they rub and cuddle all over that massive dick. The dick itself becoming the upper body of another herm bat, but the cock remains as its nose which unloads even harder from the mutations. Soon his tail becomes another bat, just fapping madly as hir body pumps with hir own massive bulging heart. Even the bunderg's nose becomes another upper bodied bat herm with an even bigger snoot than his own. Balros & Echoen Your whole body and each of your limbs jerk with the sheer force and power of your beating hearts. Even your toes are swelling from pressure and pleasure. The big battyherm cooos so sweetly as you finally fucking lose it and cum, blasting hot, high-pressure ejaculate from your dick and your nose, both of them stretching longer and larger and your balls getting bigger even as they unload. From onlooker's view, just a massive snoot is sticking out of the window, hosing cum down onto all of them. Every open heart grows new capillaries, muscle, skin, fur and curvy herm flesh and take on the shape of lusty, pregnant, ever-throbjaculating bats. The hormones of outrageous pregnancies swamp you and make you cum and grow even more, bellies bouncing as the hearts they're pregnant with beat in unison. As these bats grow they seem to just want to fap and cum and keep growing bigger, rubbing against you and making you hug yourself, briefly burying your head and ears between massive throbbing bellies. Every time they cum, all of your hearts beat even harder. When your entire massive snoot becomes the upper torso of a big brown bat herm, she pushes her 'butt' into your face and blocks your view. Fieron the entirety of the bunderg and bats' body is throbbing and beating violently at this point. his balls continue to throb and grow, acting as two more massive hearts to not only pump blood to its body, but to make sure to pump an endless amount of cum. Soon his bat snout splits down the middle, then all the way down through the bunderg's head, quickly splitting off and becoming another head with a another massive snoot bat on it. Soon he finds himself looking lovingly into his own eyes as the two snoutbats heavily make out with eachother, both gushing cum through their mouths and splashing inside of their locked maws. Soon more parts of him multiply and mutate, growing an extra set of bat arms, another bat cock, soon 4 of them, three bat tails which all soon find themselves embracing the other bat herm in the room, rubbing their constantly beating and growing pregnant bellies against hir, along with thier massive cocks and breasts. Then bunderg's ears become big bat ears and they perk up immediately as they are sensitive and can soon pick up the heartbeats of those on the street just fucking eachother as they become big throbbing bat herms themselves. The sound itself causes all of the bat limbs to get even BIGGER with pregnancy, the previously just hearts soon mutate into big fully grown throbbing bats themselves. Balros & Echoen When your bat snot splits, shi shrieks shrilly in exctasy, hugging hir clone-self as soon as shi can and squeezing hard. Pushing tongues into each other's muzzles and making sure their throbbing snouts are -shoving- against each other hard. The more bats that grow and spawn on you, the more each bat seems to get hornier and more excited, cumming harder than all of them thought possible