LXX Gen 30:3

εἶπεν δὲ Ῥαχὴλ τῷ Ἰακώβ Ἴδου ἡ παιδίσκη μου Βάλλα, εἴσελθε πρὸς καὶ τέξεται ἐπὶ τῶν γονάτων μου, ἵνα τεκνοποιήσωμαι κἀγὼ ἐξ αὐτῆς.

Then she said, “Here is my maidservant Bilhah. Sleep with her, that she may bear children for me, so that through her I too can build a family.”