Top definition
A guy who is not a blood relative therefore there is no risk of genetic mutations
Lucy is stuck in the sink cabinet and starts yelling for help. Ashton, her step bro, runs to the bathroom to see what all the yelling is about. He sees that his step sister is stuck, but in the position that she’s in, he notices that she’s got cake. Lucy was only wearing a blouse and short skirt with a very visible black lace thong. Ashton grabs her booty and massages it with his fingers. He then lowers the skirt, plays with the thong, and shoves his finger up her entering. Lucy lets out a loud yelp. “WhAt ArE yOu DoInG sTeP bRo?” She says. Ashton lowers her thong and starts playing with her clitoris with his left hand while jacking off with his right hand. Lucy is moaning in pleasure and suddenly, her insides feel like they exploded as her step bro pounds her. Lucy says in between her moans, “Did you use protection?” Ashton replies, “no risk of genetic mutation here” Ashton continues to pound her until the cabinet breaks and Lucy is now free.
by DaddyMints July 21, 2020
Get the Step Bro neck gaiter and mug.
Jul 26 Word of the Day
Noun: a friend who is usually only called upon by a friend when a more primary/prominent friend is unavailable.

Taken from the term “second string” in an athletic competition situation. In football, if the star quarterback gets injured during a play, the second string is called off the bench to replace him/her. A “Second String Friend” is essentially benched until needed, if ever.

Synonyms: Plan B, Second Choice, Secondary Friend, Benched Until Needed
I got a call from X the other night. She had an extra ticket to a concert she bought for a friend, but they couldn’t make it so she called me to ask if I wanted to go because I am her Second String Friend.
by Deus-ex-machina August 26, 2020
Get the Second String Friend neck gaiter and mug.
2
A Pervy boy who likes to watch his sister master bate. When she catches him he fucks her to keep her quiet. They are usually scrawny and have a finely trimmed bush
Girl: What are u doing Step Bro
Boy: I’ll do anything to keep you quiet.

30 minutes later
OHHHH GAAHD I FEEL IT IN MY STOMACH
by MCALHWS February 06, 2019
Get a Step Bro mug for your cousin Beatrix.
5
As a tiktok star my self I always shout what you doin step bro
Jane: hey stepbro

Dave: hey step sis ;)
Jane: what you doing step bro

Dave: hold still
*bed shakes*
by Big panini :) March 28, 2019
Get a Step bro mug for your dad Manafort.
6
Shorter version of the word stepbrother

Usually Stepbros confuse bathrooms with beaches.
by Im_NinetyyNineee March 30, 2019
Get the Stepbro neck gaiter and mug.