derek was your step brother, your mother married another man and he had a son, he was atleast 5 years older than you, you were 19 and he was 24

you were in the bathroom brushing your teeth getting ready for bed, you were in your pjs but it was kind of revealing.. your step brother then walked passed you but then he walked back to you

“why are you wearing that?.. i can see your cleavage..” he said while raising an eyebrow