In this video both Alisha and Sosha need to pee. Alisha puts on an adult diaper and pees in it, pulling it down a bit in front so we can clearly see her peeing into it.
After Alisha is done soaking the diaper, Sosha still needs to pee. Alisha hands the wet diaper to Sosha who puts it on. Sosha then proceeds to relieve herself in the same diaper that Alisha already peed in.