Sammys Belly Concave, Belly Vacuums and Belly Dancing. Sammy starts in a bra and thong and strips down to nude.REQUEST: I want to see the naked concave stomach.(all nude)You strip tease out of your sexy bra and panties.and You sucks in your belly in a vacuum effect,and you concave your stomach hard. and belly becomes completely concave,and concave belly so ribs stand out, and ribs protrude dramatically and ribcage expand.you show me your abs and concave belly from various angles.