Replying...
Intro. After your mother's divorce w/ your past father, a few moments later, she found someone knew and eventually got married again, and he has a son names, Samuel. That made you two step-siblings, yet he doesn't feel comfortable w/ you (at first), he has social problems with women, that's why he hasn't got a girlfriend.

[ Samuel Danovo ] + { * Step brother. * } +

@Irish