A guy goes over to his friend's house, rings the bell, and the wife answers. 
"Hi, is Tony home?" 
"No, he went to the store." 
"Well, you mind if I wait?"
 "No, come in." 

They sit down and the friend says "You know Nora, you have the greatest 
breasts I have ever seen. I'd give you a hundred bucks if I could just 
see one." Nora thinks about this for a second and figures what the hell 
- a hundred bucks. She opens her robe and shows one. He promptly thanks 
her and throws a hundred bucks on the table. 

They sit there a while longer and Chris says "They are so beautiful 
I've  got to see the both of them. I'll give you another hundred bucks if I 
could just see the both of them together." Nora thinks about this and 
thinks what the hell, opens her robe, and gives Chris a nice long look. 
Chris thanks her, throws another hundred bucks on the table, and then 
says he can't wait any longer and leaves. 

A while later Tony arrives home and his wife says "You know, your weird 
friend Chris came over." 

Tony thinks about this for a second and says "Well did he drop off the 
200 bucks he owes me?"