Indeed, the Lamb is at the midst of the throne :)
Revelation 7:17 (English Standard Version)
17 For the Lamb in the midst of the throne will be their shepherd,
and he will guide them to springs of living water,
and God will wipe away every tear from their eyes."
The throne of God is also that of the Lamb.
Revelation 22:1-3 (English Standard Version)
The River of Life1 Then the angel showed me the river of the water of life, bright as crystal, flowing from the throne of God and of the Lamb 2 through the middle of the street of the city; also, on either side of the river, the tree of life with its twelve kinds of fruit, yielding its fruit each month. The leaves of the tree were for the healing of the nations. 3 No longer will there be anything accursed, but the throne of God and of the Lamb will be in it, and his servants will worship him. Blessings,