Air mattress inflating WMV

Description: I’ve got two big air mattresses in front of me, and no pump at all. just me and my lungs. i sit down, put my mouth to the valve, and start blowing air in. each breath fills it a little more, but it takes time. i keep going, steady, breath after breath, until i can see the first one slowly taking shape. i pause to catch my breath, then lean back in and blow harder, pushing air deep inside until it finally looks full. then i move on to the second one. my cheeks puff out with every blow, and i can feel myself getting lightheaded, but i keep at it. it’s slow, but with enough breaths the mattress rises up, firmer each time i push more air in.