This is a rather simple request of you simply lying down on your bed, on your back, with your arms stretched high above your head pretending to be resting, with your tummy exposed of course rising and falling as you breathe gently. I'd love to see you suck in and stretch and make your tummy as concave as you can and focus on your jutting ribs.You see I'm really into concave sunken in tummies.I love the sight of a beautiful girl's tummy as she sucks it in and her tummy becomes concave, such as when you can see a hint of her ribs betraying their hide out behind her soft flesh.This is even better... Show more