Why does my MouseButton1Click function act like it's being pressed twice ?

I don't know the actual issue; this is my first time I've got this issue and I've been working with MouseButton functions quite alot. I click it for the first time, it functions as if it's being pressed twice and then I click it again, 4 times, again, 8 times and so on.

for i, v in pairs(petsel) do
	petsel[i].MouseButton1Click:Connect(function() 
		CircleClick(petsel[i], Mouse.X, Mouse.Y)
		local buttonclick = petsel[i]
		local PetN = buttonclick.PetN.Text
		local Opt = script.Parent.Frame.Page.Pets.Opt
		Opt.PetImage.Image = "rbxassetid://" ..(require(game.ReplicatedStorage.PetDesc).basketdata[PetN][1]).. ""
		Opt:TweenPosition(UDim2.new(1.1, 0, 0,0), "Out", "Sine", 0.5)
		Opt.Spawn.MouseButton1Click:connect(function()
--			local clicks = 0
--			local clicks = clicks + 1
--			if clicks == 1 then
				Opt.Spawn.Selectable = false
				CircleClick(Opt.Spawn, Mouse.X, Mouse.Y)
			
				ReplicatedStorage.Events.SpawnPet:FireServer(PetN)
			
				Opt:TweenPosition(UDim2.new(0.75, 0, 0,0), "Out", "Sine", 0.5)
				Opt.Spawn.Selectable = true
				local clone = Player.PlayerGui.PetUI.Examples.PetSelec.ImageButton:Clone()
				clone.PetPic.Image = "rbxassetid://".. require(game.ReplicatedStorage.PetDesc).basketdata[PetN][1] ..""
				clone.ImageColor3 = Color3.new(require(game.ReplicatedStorage.PetDesc).basketdata[PetN][3],require(game.ReplicatedStorage.PetDesc).basketdata[PetN][4],require(game.ReplicatedStorage.PetDesc).basketdata[PetN][5])
				clone.PetName.Text = PetN
				clone.Visible = true
				clone.Name = PetN
				print(clone.Name)
				clone.Parent = Player.PlayerGui.PetUI.SideGUI.SelectionPets
				local way = Player.PlayerGui.PetUI.SideGUI.SelectionPets:WaitForChild(clone.Name)
--				clicks = 0
--			end
		end)
		Opt.removep.MouseButton1Click:connect(function()
			local clicks = 0
			local clicks = clicks + 1
			if clicks == 1 then
				Opt.Spawn.Selectable = false
				Opt.removep.Selectable = false
				CircleClick(Opt.removep, Mouse.X, Mouse.Y)
				ReplicatedStorage.Events.RemovePet:FireServer(PetN)
				Opt:TweenPosition(UDim2.new(0.75, 0, 0,0), "Out", "Sine", 0.5)
				Opt.Spawn.Selectable = true
				Opt.removep.Selectable = true
				local selectionpets = Player:WaitForChild("PlayerGui"):WaitForChild("PetUI"):WaitForChild("SideGUI").SelectionPets
				if selectionpets:FindFirstChild(PetN) then
					selectionpets[PetN]:Destroy()
				end
				clicks = 0
			end
		end)
	end) 
end

Opt.Spawn.MouseButton1Click:connect(function()

switch it to

Opt.Spawn.MouseButton1Down:connect(function()