Ezekiel 23:19-21

19Yet she multiplied her whoredoms, calling to remembrance the days of her youth, wherein she played the harlot in the land of Egypt;

20and she lusted after their paramours, whose flesh is [as] the flesh of asses, and whose issue is [as] the issue of horses.

21And thou didst look back to the lewdness of thy youth, in the handling of thy teats by the Egyptians, for the breasts of thy youth.