Christmas present for my mother

The Santa Claus at the shopping mall was very surprised when Mary , a young lady aged about twenty years old, walked up and sat on his lap. Now, we all know that Santa doesn’t usually take requests from adults, but she smiled very nicely at him, so he asked her, “What do you want for Christmas?“ “Something for my mother, please,“ replied Mary sweetly. “Something for your mother? Well, that’s very loving and thoughtful of you,“ smiled Santa. “What would you like me to bring her?“ Without turning a hair Mary answered quickly, “A son-in-law.“