A married couple was in a terrible accident where the woman's face  was  severely burned.   The doctor told the husband that they couldn't graft any skin from  her  body because she was too skinny. So the husband offered to donate  some  of  his own skin.  However, the only skin on his body that the doctor felt was suitable  would have to come from his buttocks. The husband and wife agreed  that  they would tell no one about where the skin came from, and requested  that  the doctor also honor their secret. After all, this was a very  delicate  matter.  After the surgery was completed, everyone was astounded at the  woman's  new beauty. She looked more beautiful than she ever had before! All  her  friends and relatives just went on and on about her youthful beauty!  One day, she was alone with her husband, and she was overcome with  emotion at his sacrifice. She said, "Dear, I just want to thank you  for  everything you did for me. There is no way I could ever repay you."  "My darling," he replied, "think nothing of it. I get all the thanks  I  need every time I see your mother kiss you on the cheek."