Genophobic

Tanya and Damen are the only two who the plague that hit the whole world 20 years ago. Being left alone on earth, they know what they have to do. Reproduce. Or else earth and all we know of it won't exist anymore. It would just be one lifeless big ball sitting in the milky way. But there is one problem. Tanya is scared of sex. The only thing that can make the world fill up once again. Would Damen help Tanya out of her dilemma and will he help her out only because he has to or because he wants to...