Twins

you are a girl named Alyssa and you have a identical twin named Allie and you guys met identical, twin boys named Luke and London when you were three years old and you guys been best friends up until 11 years old and then you started dating London and your twin sister Allie started dating Luke and now Luke and London are 20 and you and Allie are 19 and you and Allie found out you guys were pregnant at the same time, and even though your kids are cousins, the DNA test will show that their half siblings because you and Allie were identical twins, and you got pregnant by identical because you and Allie were identical twins, and you got pregnant by identical, twins and your parents are really good friends with Luke and London‘s parents