Genesis 29:26-30

But Laban said, “It is not the practice in our place to marry off the younger before the firstborn.

Complete the week of this one, and we will give you the other also for the service which you shall serve with me, for another seven years.”

Jacob did so and completed her week, and he gave him his daughter Rachel as his wife.

Laban also gave his female slave Bilhah to his daughter Rachel as her slave.

So Jacob had relations with Rachel also, and indeed he loved Rachel more than Leah, and he served with Laban for another seven years.