Anthony's Test. The Agent, #3

In a post-apocalyptic future humanity is threatened by widespread male infertility. Those few men with high sperm counts become Agents, part of a government group assigned to impregnating women with the babies they want. Anthony has never had his sperm count tested before, but his friends convince him into an Agency testing center. There he meets a virtual reality program glad to help collecting his sample.
With her Anthony learns exactly how potent he can be!