Genesis 30:13 Meaning

11And Leah said, A troop cometh: and she called his name Gad.

12And Zilpah Leah's maid bare Jacob a second son.

13And Leah said, Happy am I, for the daughters will call me blessed: and she called his name Asher.

14And Reuben went in the days of wheat harvest, and found mandrakes in the field, and brought them unto his mother Leah. Then Rachel said to Leah, Give me, I pray thee, of thy son's mandrakes.

15And she said unto her, Is it a small matter that thou hast taken my husband? and wouldest thou take away my son's mandrakes also? And Rachel said, Therefore he shall lie with thee to night for thy son's mandrakes.