I would invite her inside and then 69 with her, so that she can give me a bj while I am licking her. Then I would move on to fucking her pussy and ass. Then back to a bj before going back to fucking her pussy. Once I am ready to cum, while still inside her pussy, I would give her a choice. If she was not fertile right then, I would cum inside her pussy and she would not get a choice. If she was fertile, then I would give her the choice of cumming in her ass or her swallowing my cum. She needs to pick quickly, otherwise I will be finishing inside her fertile pussy. If she does not follow through on where to cum, then the next time, I will just cum inside her fertile pussy. I would invite her to come over at least 3 times per week.