I have the following setup. I want to toggle the expanded div when clicking the expander link. I only want to expand the div directly next to the link though. How can I do this?

<a class="expander" href="#"><?php echo get_the_title($post->ID); ?></a>
<div class="expanded">
    content here
</div>
 
<a class="expander" href="#"><?php
echo get_the_title($post->ID); ?></a>
<div class="expanded">
    content here
</div>
 
<a class="expander" href="#"><?php
echo get_the_title($post->ID); ?></a>
<div class="expanded">
    content here
</div>

Here's my jquery:

$('.expander').click(function() {
    event.preventDefault();
    $(this).siblings('expanded').toggle();
});