You cut the tortoise in half in your dream, which shows that you don't accept sex enough. On the one hand, I feel disgusting like a bug, on the other hand, the primitive power of human beings brings the tortoise back to life.
This thing is an animal instinct and will never die. Even if I don't dream about turtles in the future, I will dream about other things. The tortoise changed everything.
The tortoise is a kind of protection. Defending something, but the power of sex broke through the turtle shell.
Solution: be honest, it's no big deal.