term_id );
$args = array(
'cat' => array($first_category),
'post__not_in' => array($post->ID),
'posts_per_page' => 3,
'ignore_sticky_posts' => true
);
$related_posts = new WP_Query($args);
if( $related_posts->have_posts() ) :
while ($related_posts->have_posts()) : $related_posts->the_post(); ?>