Something changes when the days start to get longer. The extra bit of sunshine makes its way into the muscles and flesh, bringing out an extra bit of enthusiasm and energy that is often lacking in the winter months. Dr. Wolf is keenly aware of this and he takes full advantage of it when it comes to his house guests. He and Marcus were sitting on the couch, enjoying a lazy day of watching movies and TV when the bright sun had filled him up with a particularly potent amount of sexual energy.