The wedding night. He is now actively exploring her body. He is asking that they come together and have sexual intercourse. Chapter 4 verse 16 gives her response.
Chapter 4, verse sixteen Awaken, O north wind, and come wind of the south. Blow upon my garden and cause its spices to flow like a stream. May my beloved come to his garden and eat its delicious fruits.
Ok, that is a very definite YES. Notice he says your garden and she invites him to his garden. In case there is any doubt, look at how he eventually responds.
Chapter 5, verse one I have come into my garden, my sister, my bride; I have gathered my myrrh with my spice. I have eaten my honeycomb with my honey. I have drunk my wine with my milk.
Did he leave anything out for you? They have come together with an incredible equality, and shared their bodies with each other.
verse one continues with this statement Eat O darling companions, drink and be drunk, O beloved ones.
The ultimate songwriter addresses them with the plural of the term he uses for her, and the plural of the term she uses for him. This encouragement is the same for both of them. Male and female, equals in the most intimate contact they can have. The time to awaken love has come, and it is definitely awake.