Ummmm.. Legally yes, however, morally I don't think it's a great idea. First of all it depends on how long he has been your step brother and what your age is. If you are older ( say 30 or so and up ) then it would be maybe more acceptable.... But if you're young I wouldn't advise this...
If your spouse has a step-brother, then you can consider him to be your step-brother-in-law if you want. However, the term is rarely used. Most would either call him a brother-in-law or consider him not to be related, depending on his relationship to your spouse.
They can date as long as they are not related by blood.
It can do nothing!
if you dad or mum are remarried to someone who has a son ,the son is a step brother
he had no step brother only aaron was his brother
"Step-brother" is a noun and does not have an opposite.
He did not have a real step brother. He had a brother called Aaron.
A step brother's cousin is no relation to you.
no only a step brother and step sister.
He has a step brother but not a real brother
His step brother,Jazon His step sister,Jazmyn
She has 1 sister, a step-sister, a step-brother, a half-sister and a half-brother
Nero was alleged to have killed his step brother by poison.