diff --git a/document-picture-in-picture/propagate-user-activation-from-opener.https.html b/document-picture-in-picture/propagate-user-activation-from-opener.https.html
new file mode 100644
index 000000000000000..d33208d30870af0
--- /dev/null
+++ b/document-picture-in-picture/propagate-user-activation-from-opener.https.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<title>Test that a user activation in window that owns a document picture-in-picture window is usable in the
+  document picture-in-picture window</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<body>
+<script>
+promise_test(async (t) => {
+  await test_driver.bless('request PiP window');
+  const pipWindow = await documentPictureInPicture.requestWindow();
+
+  assert_false(navigator.userActivation.isActive, 'the opener should initially not have user activation');
+  assert_false(pipWindow.navigator.userActivation.isActive, 'the PiP window should initially not have user activation');
+
+  // Activating this window should also activate the picture-in-picture window.
+  await test_driver.bless('activate opener window');
+  assert_true(navigator.userActivation.isActive, 'the opener should be activated when the PiP window is activated');
+  assert_true(pipWindow.navigator.userActivation.isActive, 'the PiP window should be activated');
+});
+</script>
diff --git a/document-picture-in-picture/propagate-user-activation-to-opener.https.html b/document-picture-in-picture/propagate-user-activation-to-opener.https.html
new file mode 100644
index 000000000000000..2f1b79bcd333313
--- /dev/null
+++ b/document-picture-in-picture/propagate-user-activation-to-opener.https.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<title>Test that a user activation in a document picture-in-picture window is usable in its opener window</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<body>
+<script>
+promise_test(async (t) => {
+  await test_driver.bless('request PiP window');
+  const pipWindow = await documentPictureInPicture.requestWindow();
+
+  assert_false(navigator.userActivation.isActive, 'the opener should initially not have user activation');
+  assert_false(pipWindow.navigator.userActivation.isActive, 'the PiP window should initially not have user activation');
+
+  // Activating the picture-in-picture window should also activate the opener.
+  await test_driver.bless('activate pip window', null, pipWindow);
+  assert_true(navigator.userActivation.isActive, 'the opener should be activated when the PiP window is activated');
+  assert_true(pipWindow.navigator.userActivation.isActive, 'the PiP window should be activated');
+});
+</script>
