Nice try Kitten

Felix,

I applaud your ambition in attempting to find a way to augment your buttocks while trying to relieve your husband of his belly fat.  Unfortunately, at the present time, fat taken from another individual, with the possible exception of an identical twin, will not survive if transferred to you.  A range of amounts required for a dramatic buttock augmentation using the "Brazilian technique" is 500-800cc or more per cheek.  Smaller amounts than this will provide more subtle results.  If you are really thin, your belly pouch will provide maybe 200-300cc of usable fat in total.  An alternative is buttock implant placement, an option that you may research easily on the internet if you haven't already.  Good luck!