step bro

the guy that step sister gets horny with
Step sis: "Step bro, what are you doing?"
Step bro: "I got stuck."
by The guy he is looking for February 13, 2020
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Step Bro

C’mon mane! We all know why you searched this up!

A Step Bro is a person that all straight men can respect, but don’t wish to be. The Step Bro usually is asked for help by his Step Sis, however, he does a bit more than just help.
His body is usually scrawny, due to the majority of his time going into gaming, and his lack of physical strength makes his appearance rather “unpleasant”. But oddly enough, he is packing somewhere around 6-10 inches. “Like he’s ever going to get a chick?” That statement is beyond wrong! His chick IS his Step Sis!
Dickie: CuM MeaT Ya NeW STeP SiBLinG, TrEVOr!
Trevor: uh... hi!
Helen: awww yeah! My Step Bro finally came! You look HANDSOME! *lets out a slight moan*
Trevor: *Pulls our a cross* BEGON, WENCH FROM TIMES OF YORE!
Helen: bruh.
by Fagimus February 26, 2021
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step bro

Your step brother that has a big shlong, and walks into your room with his big whopping penis out. While step sister is wearing a short flannel skirt.
Step bro: *walks in with big shlong out*
Step sis: what are you doing step bro?
Step bro:-_-
Step sis: :O
Step sis: takes off clothes
Step bro: *sticks shlong in step sis*
by Shlong69 December 05, 2019
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step bro

a mfer who gets a boner no matter what his step sister does and does not understand consent.
My step bro got a bone as I was washing the dishes
by insatiable 2128 April 02, 2021
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step-bro

a brother that is not your actual brother.
Looks like she is stuck *sniffs air aggressively*
Step-bro! Im stuck
by Racoon14 March 21, 2021
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Step-Bro

by Swysja September 12, 2021
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Step bro day

Your step bro becomes your boyfriend for a day
Step brooooo what are you doingggggg

Step bro day
by Ally wsg October 16, 2019
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