5 times peter called stephen mum + 1 time stephen shocked him with his response

one

1

"it was an accident!" were peter's only words to stephen after what had happened.

peter, stephen, natasha, clint and scott just came back from a mission. they were all covered in bruises and scratches. peter needed help to treat his wounds so stephen, being the doctor he is, helped the teenager out.
"thanks, mr strange." peter muttered, wincing as stephen wiped a wound with a wet towel. the sorcerer rolled his eyes.
"it's doctor strange, kid. also, no problem." stephen let out the smallest of smiles as he got out a cute spiderman themed plaster. peter beamed and giggled, also noticing the plaster. "keep still, kid. i can't put it on." stephen said. peter stopped laughing.
"sorry."
"no, it's fine. no need to apologise."
"oh... sorry."
"kid..."
"sor- i mean... uh...." it was stephen's turn to chuckle. peter pouted as stephen finally put the plaster on the brunette teen's left cheek.
"there we go. all done."
"i don't have to keep still now, right?" stephen shook his head.
"are there any other bruises or scratches i should know about?" the doctor asked.
"nope." peter replied, putting emphasis on the "p". stephen stood up from his crouching position and ruffled peter's hair.
"well, i guess my job here is done." stephen announced. "i should probably get going back to the sanctum."
"okay. thank you again, mr... doctor strange." stephen smiled, opening the portal. he felt so comfortable around peter. and tony of course.
"see ya, kid." peter waved at him enthusiastically.
"bye, mum." peter said, not having enough time to process what he just said. stephen froze, and peter tensed up.

oh no.

"u-uh, i mean, bye mr strange. oh god, i mean, doctor strange. agh, i'm so sorry." peter stuttered. stephen just stared at the flustered kid, blushing slightly himself.
"i-it's okay, peter." stephen reassured the arachnid hero. this didn't help peter. he still looked tense. there was an awkward silence, which stephen broke hopelessly. "umm, so, i'm just gonna..." he pointed at the portal and peter nodded.
"yeah... okay...."
"bye... oh, and tell tony i said hi..." stephen quickly exited into the portal. peter placed his face in his hands, blushing hard in embarrassment. tony walked into the room, raising an eyebrow at his flustered son.
"what happened he-"
"mrstrangewashereandhetoldmetotellyouhesaidhiokaybyedadloveyou." peter said, rushing his words and running out of the room.
"okay..."

2

peter may have been a bit high the second time he called stephen his mum.

not on drugs. of course not. peter wasn't that crazy.

laughing gas. he was high on laughing gas the second time he called stephen his mum.

peter, along with tony and stephen, had just finished his dentist appointment. the dentist had given him laughing gas, and now in the sanctum, there was a light-headed and very giggly peter.
"oH mY gOd, Mr StArK, mR stRaNnNgEe... lOoK..." peter slurred, standing on the ceiling. the cloak of levitation was draped around his shoulders. "i CaN fLy." he lept off the ceiling and floated. he started giggling hysterically. tony smiled at his kid whilst stephen shook his head.
"peter, get down from there. you might get hurt." stephen warned the teen.
"uGh... YoU sOuNd LiKe My MuM. yOu'Re SuCh A mUm, Mr StRaNge." peter whined, floating back onto the ground. he gasped dramatically. "oH mY LoRd, Mr StRaNgE... yOu'Re My MuM!" stephen raised his eyebrows in shock whilst tony started to laugh loudly. stephen pinched the bridge of his nose as peter continued to chant "mr strange is my mum" and tony's laughs got louder and louder.

-/-/-

peter woke up the next day. he slowly made it to the kitchen in the sanctum where he was greeted by tony drinking a cup of coffee and stephen calmly reading a book.
"hey, mr stark. hey, mr strange." peter said, groggily, rubbing his eyes.
"morning, peter. also, don't rub your eyes. it can damage your eyesight." stephen said, refusing to look at the teenager. tony noticed this and raised an eyebrow. still, he refused to say anything about, instead greeting the arachnid hero.
"hey, kid. how'd you sleep?" peter walked up near the toaster and grabbed two slices of bread. he placed the slices of bread into the toaster.
"i slept fine." peter paused, turning to the two adults. stephen still refused to meet his eye. "did i say anything embarrassing whilst i was high on laughing gas?" tony smiled.
"well, the usual. you mentioned something about wishing to be a creeper in a video game, what was it called? mindcrap?"
"minecraft." peter answered instantly.
"yeah whatever. you did some weird dances. and sang some weirder songs. and uh, that's it. oh, wait! you said something else. isn't that right, stephen?" tony smirked at the sorcerer, who was blushing behind the book.
"i don't recall anything else." stephen answered.
"you sure? he didn't call you anything?"