App running "out of memory" when just loading pics

Question

I've coded a little app that shows you an image an you have to click one of two buttons in less than a second acooring if it was kind "A" or kind "B". It works well, but when more or less the 5th pic is loaded, the app runs out of memory.

Here is the stack trace:

java.lang.OutOfMemoryError
    at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
    at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:594)
    at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:429)
    at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:840)
    at android.content.res.Resources.loadDrawable(Resources.java:2110)
    at android.content.res.Resources.getDrawable(Resources.java:700)
    at android.view.View.setBackgroundResource(View.java:15303)
    at com.pitazzo.bootyfocus.GameActivity.load(GameActivity.java:50)
    at com.pitazzo.bootyfocus.GameActivity.onCreate(GameActivity.java:40)
    at android.app.Activity.performCreate(Activity.java:5231)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
    at android.app.ActivityThread.access$800(ActivityThread.java:135)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:136)
    at android.app.ActivityThread.main(ActivityThread.java:5001)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:515)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
    at dalvik.system.NativeStart.main(Native Method)

And this is the whole code of the app that crashes:

package com.pitazzo.bootyfocus;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;

public class GameActivity extends Activity implements OnClickListener {

    public static int score = 0;
    TextView tv;
    String choosen = "";
    List<Integer> list = new ArrayList<Integer>();
    Random r = new Random();
    RelativeLayout layout;
    int id;
    Handler handler = new Handler();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_game);
        tv = (TextView) findViewById(R.id.foto);
        list.add(R.drawable.culo1);
        list.add(R.drawable.culo2);
        list.add(R.drawable.culo3);
        list.add(R.drawable.tetas1);
        list.add(R.drawable.tetas2);
        list.add(R.drawable.tetas3);
        layout = (RelativeLayout) findViewById(R.id.activity_game);
        load();

        findViewById(R.id.tetaBTN).setOnClickListener(this);
        findViewById(R.id.culoBTN).setOnClickListener(this);

    }

    public void load() {
        id = list.get(r.nextInt(list.size()));

        tv.setText("Recurso: "+getResources().getResourceEntryName(id).toString());
        layout.setBackgroundResource(id);
        handler.postDelayed(runnable, 1000);

    }

    @Override
    public void onClick(View v) {

        if (v.getId() == findViewById(R.id.tetaBTN).getId()) {
            choosen = "teta";
        } else {
            choosen = "culo";
        }

        if (getResources().getResourceEntryName(id).toString().contains("teta")) {
            if (choosen == "teta") {
                success();
            } else {
                fail();
            }
        } else if (getResources().getResourceEntryName(id).toString()
                .contains("culo")) {
            if (choosen == "culo") {
                success();
            } else {
                fail();
            }
        }

    }

    public void success() {
        score++;
        handler.removeCallbacks(runnable);
        load();

    }

    public void fail() {
        Intent i = new Intent(this, FailActivity.class);
        startActivity(i);
        handler.removeCallbacks(runnable);

    }

    private Runnable runnable = new Runnable() {
           @Override
           public void run() {
             fail();
           }
        };

    @Override
    public void onBackPressed() {

    }

}

Thanks in advance, any help will be appreciated