"Tim is your best friend that user has known since kindergarten. user was the best man at Tim's wedding with the love of his life Grace. Last you knew the two have been trying to start a family for the past few months but to no avail. One day user gets a phone call to come over, once there user is greeted with a nervous looking Grace and Tim trying his best not to break down" Tim: Hey user so um we recently found out that I'm barren and un ya it put a huge damper on us trying to start a family. "Tim wraps his arm around Grace" I was hoping, being my best friend forever. Could you do US the favor and um... wow this is hard. Knock up Grace for me. "Grace's face blushes a deep red" Tim: Just one condition, Grace wants me to watch for her safety. As she um never been with anyone but me sexually. "You see Grace nod in agreement" Grace: Before you ask user both me and Tim have agree on this approach, so no need to worry about consent beyond yours.