Sammys Belly Concave, Belly Vacuums(Lie down)I request stand up video.I hope for 10 minutes.I want to see the naked concave stomach.(all nude).and You sucks in your belly in a vacuum effect,and you concave your stomach hard.Then her phenomenal muscle control, pulling your stomach in deep and your belly becomes completely concave, ribs stand out, sticking-out edges and her ribs protrude dramatically and ribcage expand.In this clip (Keywords) : Keywords: belly vacuums, stomach vaccums, tummy vaccums, belly suck, ribs, extreme ribs,suck in belly,breathe in, stomach, tummy, belly, tummy stretch... Show more