She is filming her girlfriend and joining.

• 00:07
• 00:29
• 00:51
• 01:13
• 01:35
• 01:58
• 02:20
• 02:42
• 03:04
• 03:26
• 03:48
• 04:10
• 04:33
• 04:55
• 05:17
• 05:39

I thought it was a mirror but it isn't.