Anna and Lana are new to the Laboratory, and are very curious about blowing their first "grelka" by mouth. They know many other petite women have done it, but are unsure of exactly how. Lana is particularly concerned about whether her cheeks will pop before the rubber vessel does. They initially try to sit on them while initiating inflation, but that is a little too difficult. They puff with all their might to get them started, and then keep going, eventually bouncing on them, and clearly lifting their own weight with only their lung power. Lana finishes first, and "encourages" Anna to also...

Anna and Lana are new to the Laboratory, and are very curious about blowing their first "grelka" by mouth. They know many other petite women have done it, but are unsure of exactly how. Lana is particularly concerned about whether her cheeks will pop before the rubber vessel does. They initially try to sit on them while initiating inflation, but that is a little too difficult. They puff with all their might to get them started, and then keep going, eventually bouncing on them, and clearly lifting their own weight with only their lung power. Lana finishes first, and "encourages" Anna to also bring hers to the point of no return.