S1T1E1P3B3R1O1T1H4E1R1S1
19 points
STEPBROTHERS is validvalid
STEPBROTHER, a son of a stepparent [n]
STEPBROTHER, a son of one's stepparent by a former partner [n]
STEPBROTHER, a son of a stepparent [n]
STEPBROTHER, a son of one's stepparent by a former partner [n]