Would you like to add these values to the output activations of another layer?
If so, just add this tensor to the output of a specific layer in your forward method:
def forward(self, x, additional_x):
    x = F.relu(self.fc1(x))
    x = x + additional_x
    x = F.relu(self.fc2(x))
    ...
    return x

Let me know, if I misunderstood your use case.