Genesis 30:14-16

14And Reuben went in the days of wheat harvest, and found mandrakes in the field, and brought them to his mother Leah. Then Rachel said to Leah, Give me, I pray thee, of thy son’s mandrakes. 15And she said to 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. 16And Jacob came from the field in the evening, and Leah went out to meet him, and said, Thou must come in to me; for surely I have hired thee with my son’s mandrakes. And he lay with her that night.