Mark and Jacob woke up the next morning still cuddling under the blanket. Mark woke up first still embraced by his bigger brother, he sighed softly as he felt Jacobs morning wood pressing against his small bottom. He reached down and started tugging gently on his prepubescent penis stretching it and letting it go giggling softly because it felt funny playing with his pee pee. He looked down and saw his big brother's penis, it was so much bigger than his and it was all stiff and weird. Wait a minute, why didn't he know what erections were? In a panicked moment he realized that he was becoming a child in mind that he was physically he quickly closed his eyes and returned to his normal age. As he did everything came flooding back to him, everything he had learned in school and life was back.
He took off the covers revealing their naked bodies, perfect copies of each other, he gently fondled Jacobs penis holding the erect organ in his hands smiling as his brother moaned in his sleep. He grabbed his own penis and stroked both rubbing them together smearing their precum together. It didn't take long before they blew their loads, each brother squirting their sticky thick cum across the sheets, Jacob woke up groggy and pleasured “ what… Why are you big again?” Mark held his brother's softening penis occasionally rubbing his finger across the slick glans” I started to think I actually was little again. I was forgetting things that I already know” Jacob sat up and started playing with Mark's penis” sounds like we need to be careful in the future”. The boys played with their penises as they snuggled and kissed” fuck I love your mouth”
“ If you love it so much why don't you live in it”
Jacob looked at his brother” why not? The store said we can do anything, become anything. What if I turned into your tongue? Just for the day or something”. Mark was quiet as he processed the idea” we can try but just make it so we can still talk to each other I wanna know what it's like” Jacob released his brother's penis and kissed him while closing his eyes.
His entire body started shrinking and sliding into Mark's mouth, his arms and legs fused to his body as his skin changed into a fleshy pink and became covered in taste buds. He felt himself attached to the back of Mark's mouth immediately feeling his brother's blood flow through him. His face migrated to the tip of Mark's new tongue as his drool covered him. It was over in seconds but the immense pleasure of the transformation continued to ravage the boys.
Mark opened his mouth looking in the mirror, he wiggled his tongue before licking the glass.” How's it going bro?” Jacob answered in Mark's thoughts “ this is incredible! You need to find someone to blow I wanna feel a cock” Mark closed his mouth and swallowed a load of drool that was forming again. “ Sure thing bro I'll find a cock. He closed his eyes making a few adjustments before getting dressed and leaving in search of breakfast.
Jacob couldn't do anything as his brother closed his mouth enveloping him in a darkness, even though he could barely see Mark's front teeth he didn't care. He felt himself changing slightly as Mark changed himself, he felt his length increase dramatically as he grew wider as well and flattened out draping over his brother's new shaper teeth, he knew that Mark had become an anthro dog. He bounced around inside Mark's mouth feeling his hot breath flowing across him as warm drool flowed across his length constantly. It was very soothing inside. His world was suddenly flooded with light as Mark started eating breakfast. A large spoonful of yogurt smothered him as Mark ate as quickly as possible using Jacob to push the gloppy yogurt down his throat after licking the spoon and container he went outside in search of cock.
Mark didn't have to go far to find any. He went to his best friend's house and snuck around to his friend's window knocking on it in a special pattern. Jacob heard the knocks and was immediately excited causing Mark to salivate. Nathan opened his window and quietly let Mark inside. The boys embraced tightly their mouths meeting as they kissed. Jacob felt himself being pushed into Nathan's mouth and across his teeth and partially down his throat, he could taste the other boy he had just eaten and brushed his teeth it was almost overwhelming. He heard Mark's voice in his head “ I'm gonna suck him dry for you, anything special?” The boys broke apart each smiling and erect “ somebody's happy” Nathan taunted as he caressed Mark's large erect, I don't know what I love best your tongue or your penis I wish I was part dog” Mark stuck his tongue out letting Jacob hang out in the air as he shook his head “ your getting slobber everywhere stop!” Nathen couldn't keep a straight face and started laughing as Mark's drool splattered on his face”.
The boys undressed revealing their erections “ Yess dog cock the perfect way to start the day!” Nathen laid down on his bed and Mark laid down the opposite way, Jacob was still hanging out and now rubbing against the soft sheets his view filled with Nathan's erect penis and tight teen balls. Mark started licking the boy's crotch as Nathan returned the favor taking Mark's penis into his mouth. Jacob was able to feel his brother's penis slip inside the boy's mouth as Nathan's rubbed against his slobbery length. Mark gently closed his mouth enveloping Nathan's penis. The boys sucked and moaned letting their teenager hormones take control.
Being teenage boys they couldn't really last that long. I'm minutes that felt like seconds Nathans penis twitched against Jacob as the boy ejaculated into Mark's mouth squirting his cum across Jacob. Mark lasted only a few seconds longer until he blew his enormous load into the boy's unexpecting mouth. Nathen almost gagged before he was able to swallow the load. The boys rolled over as the pleasure of climax made anything else impossible. Mark kept his tongue out of his mouth letting Jacob hang out and see. He could see both boys penises still fully erect and covered in slobber and cum. “ Ohh fuck the sheets!” Nathen examined his cum and drool”
“ It's not that bad” Mark offered lamely as he sat up pulling Jacob back into his mouth” easy for you to say your parents are probably used to it mine are gonna freak!” Mark got up with his semi erect penis hanging in front of him “ let's wash them before they know” the boys got dressed and stripped Nathan's bed and snuck out to the laundry room in the hallway. Tossing the sheets inside and starting the load the two retreated back to Nathan's room.
“What should we do now?” Nathen undressed again and booped Mark “ you know what I want dog boy put that tongue to work and give me a bath”. Mark started licking Nathan's body starting with his face, Jacob was in heaven as Mark used him to clean the other boy tasting his salty skin, Mark kept licking working his way down Nathan's neck and chest down each arm and then working his way to his flat stomach. Nathan giggled and played with himself as Mark cleaned his body “ d-don't do my dick I don't wanna make a mess again” Mark nodded and started licking his legs before finishing up with his butt avoiding his butt crack of course.
“ All clean!” Mark announced triumphantly as Nathen rubbed the drool against his skin “ now i need you to be a good boy and be my urinal”. Nathan sat down on the floor and opened his mouth Mark stood over him and swished his mouth around getting a big glob of spit and releasing it down into his mouth. Nathan swallowed the spit and started playing with his rock hard penis” you ready urinal?” The urinal nodded again and Mark placed his semi erect penis on the urinals lips and released. A hard stream of yellow liquid flowed from his penis and down Nathan's throat, the urinal swallowing every drop as Mark emptied his large bladder. Finally he stopped, wiping his penis on the urinals tongue he stepped back.” Stand up! I need to clean your mouth now”. Nathen stood up keeping his mouth open as Mark recleaned the area. Jacob loved Marks pee and couldn't help himself from salivating heavily as Mark used him. After Nathen was sufficiently cleaned the boys sat down on the naked and played some games.
Mark absentmindedly opened his mouth slightly as he concentrated on the game allowing Jacob to see, he was looking straight down at Mark's erect penis and watched as a string of drool slowly dripping from his tip onto the boy's glans. He kept drooling over his penis as he played. Jacob was desperate to see Nathan's penis again and he begged his brother. Mark responded by suddenly licking Nathan's face sloppily, leaving streaks of drool on the boy's surprised face before pushing him over. Turning around so that they were 69 he took the boy's semi erect penis into his mouth and wrapped Jacob around it” yes yes yes OMG I love this” Jacob screamed as he wrapped himself around the teens suddenly rock hard shaft.
Mark and Nathen continued to suck each other, their soft muffled moans filling the room. Both boys tried their best to edge themselves to make it last but they couldn't and each boy ejaculated simultaneously covering Jacob in a much thinner amount of cum than the first but he still loved it. Rolling away they caught their breath before Nathen straddled Mark and gently opened his mouth “ my what sharp teeth you have” he rubbed the boys k9 teeth and tongue. “ Can I do this? Pleeeease?” Mark nodded, unable to talk with Nathen holding his tongue “ Yess let's go to the bathroom and get the toothbrush!”
He followed Nathan into the bathroom smiling and wagging his tail. “ Sit” Nathen directed Mark to sit on the edge of the bathtub and opened his mouth waiting. Nathan grabbed his own toothbrush and toothpaste getting them wet in his own mouth before applying toothpaste and starting to brush Mark's teeth “ ohh yes “ he moaned softly as his erect penis bounced as he moved “ this is so hot” he pulled Marks lips back gently and thoroughly cleaned between each tooth. He shifted his attention to Mark's tongue lifting it and gently brushing under before scrubbing the top, Jacob couldn't help it he salivated heavily quickly filling Mark's mouth spilling over his lips in long slobbery ropes of drool splattering into the tub. Mark was panting lightly as Nathen continued to brush his teeth, almost putting his entire hand into the boy's maw. After several minutes he was satisfied that Mark's mouth was spotless and put the toothbrush into his own mouth again sucking on it, closing his eyes while masturbating. “ My turn”
Mark stood up and gently pushed Nathan onto the edge of the bathtub while taking the toothbrush from his mouth. He licked it off before putting fresh toothpaste on it and gently pushing it inside the boy's mouth. He vigorously but gently brushed Nathans teeth keeping his maw open the entire time panting lightly allowing Jacob to see everything. He brushed Nathan's small pink tongue while his drool dripped from his mouth and onto their penises. Nathen took the cue and started masturbating both of them causing Mark and Jacob to jerk slightly. Mark sloppily licked Nathen and continued brushing the boy's teeth. After a thorough brushing he withdrew the slobber covered toothbrush and rubbed the tips of their penises with the soft bristles and covered the toothbrush in precum. Setting it aside, each boy took the other's penis and started masturbating together, Nathen took Mark's tongue and started rubbing its length causing Jacob to salivate even more “ such a messy boy aren't you? Better hope I don't make you lick this up” Mark could only nod his head as the pleasure built.
Cum spurted from their penises and covered their stomachs in sticky triumph. Exhausted both boys slumped together on the floor feeling the cool tiles against their balls. They laid together resting as their penises slowly softened, Nathan's resting on his balls while Mark retracted into his sheath “ that's cool how you cock hides inside your sheath don't have to worry about bumping into things” Mark shrugged “ my sheath is really sensitive sometimes but other than that I love it”. The boys looked at the bathtub now covered in a mix of cum, toothpaste and drool. “ Let's clean up” Mark nodded and the boys started licking it clean, sharing their messy mix until the bathtub was spotless. Mark checked his phone “ oh shit my parents want me back home soon” the boy went to Nathan's room and Mark got dressed and left his underwear for Nathen, kissing each other one last time Mark ducked out the window and slipped away.