"SILVER BOWL" joke

Mrs. Ravioli comes to visit her son Anthony for dinner... who lives with a female roommate Maria. During the course of the meal, his mother couldnt help but notice how pretty Anthonys roommate was. She had long been suspicious of a relationship between the two, and this had only made her more curious.
Over the course of the evening, while watching the two interact, she started to wonder if there was more between Anthony and his roommate than met the eye. Reading his moms thoughts, Anthony volunteered, "I know what you must be thinking, but I assure you, Maria and I are just roommates."
About a week later, Maria came to Anthony saying, "Ever since your mother came to dinner, Ive been unable to find the silver sugar bowl. You dont suppose she took it, do you?" Well, I doubt it, but Ill e-mail her, just to be sure." So he sat down and wrote;
Dear Momma,
Im not saying that you did take the sugar bowl from my house, and Im not saying that you did not take it. But the fact remains that it has been missing ever since you were here for dinner.
Love,
Anthony
Several days later, Anthony received a response e-mail from
his Momma which read.......
Dear Son,
Im not saying that you do sleep with Maria, and Im not saying that you do not sleep with her. But the fact remains that if she was sleeping in her OWN bed, she would have found the sugar bowl by now.
Love,
Momma.