Modal html e css

Sempre que eu clico na segunda foto amplia a primeira foto! como resolver isso?

Ajuda por favor.

	<div class="conteiner-responsiver">

	  <div class="container" style="padding-top: 60px">

	<div class="row portfolio">

	  <div class="col-sm-6 col-md-3">

	    <div class="thumbnail">

	      <img class="img-responsive" src=""c 862.jpg" alt="The awesome description" data-toggle="modal" data-target="#myModal">

	      </div>

	    </div>

	  <div class="col-sm-6 col-md-3">

	    <div class="thumbnail">

	      <img class="img-responsive" src="NKUM7162.jpg" alt="The awesome description" data-toggle="modal" data-target="#myModal">

	      </div>

	    </div>

	  <div class="col-sm-6 col-md-3">

	    <div class="thumbnail">

	      <img class="img-responsive" src="http://lorempixel.com/600/400/cats/?5" alt="The awesome description" data-toggle="modal" data-target="#myModal">

	      </div>

	    </div>

	  <div class="col-sm-6 col-md-3">

	    <div class="thumbnail">

	      <img class="img-responsive" src="http://lorempixel.com/600/400/cats/?6" alt="The awesome description" data-toggle="modal" data-target="#myModal">

	      </div>

	    </div>

	    </div>

	  </div>

	</div>

	<!-- Modal -->

	<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">

	  <div class="modal-dialog">

	    <div class="modal-content">

	      <div class="modal-header">

	        <button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">×</span><span class="sr-only">Close</span></button>

	        <h4 class="modal-title" id="myModalLabel">Im the awesome cat!</h4>

	      </div>

	      <div class="modal-body">

	        <img class="img-responsive" src="c 862.jpg" alt="The awesome description">

	      </div>

	      </div>

	    </div>

	  </div>

	  <div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">

	    <div class="modal-dialog">

	      <div class="modal-content">

	        <div class="modal-header">

	          <button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">×</span><span class="sr-only">Close</span></button>

	          <h4 class="modal-title" id="myModalLabel">Im the awesome cat!</h4>

	        </div>

	        <div class="modal-body">

	          <img class="img-responsive" src="NKUM7162.jpg" alt="The awesome description">

	        </div>

	        </div>

	      </div>

	    </div>