The next day step bro walked in on Sarah arguing with her boyfriend about the pregnancy. It turns out she was just lying to him about it to get him to stay with her. Sarah then saw an opportunity to take advantage of bro and maybe get him to cum inside her so she can get what she needs to make her boyfriend stay. A few days later bro became horny again out of the blue and decided to go fuck his sis again since he already jizzed inside her, but sis was busy trying to focus on her soon to be new family. bro threatened to tell Sarahs boyfriend the real truth if they didn't get to fucking. Lets just say after this final sexual ordeal Sarah might be having some triplets if you catch our drift.