Stepmom and Stepson share a bed in a hotel room. Whose mistake is this?

10
3
23:40
09:46
12:41
10:16
23:17
16:33
31:23
06:45
20:03
07:59
13:38
14:09
20:03
10:08
19:43
08:50
32:15
01:00:37
10:08
14:03
15:25
30:11
15:31
13:51
01:06:40
12:59
13:07
18:20
21:14
24:20
15:37
11:13
23:31
11:15
10:21
35:41
12:16
07:06
32:06
07:58