Thí nghiệm cao su mk2

• 00:00
• 00:50
• 01:23
• 02:14
• 02:47
• 03:37
• 04:11
• 05:01
• 05:35
• 06:25
• 06:59
• 07:49
• 08:22
• 09:13
• 09:46
• 10:36
• 11:10
• 12:00
• 12:34
• 13:24

I continue with my water bottle/gasmask breathing test with an extra vent in the bottle. Much better now. Good wank to finish.