Create an erotica about two teen twin sisters NAME_1 and NAME_2 getting drunk at a party. NAME_1 is a futanari. Unknowingly to each out they both get dared to be blindfolded and to fuck someone. NAME_2 gets on her hands and knees lifts her skirt and moving her panties to the side while NAME_1 does the same. They have sex while everyone is watching them. NAME_1 knots NAME_2's pussy and cant pull out. They take off the blindfold and are horrified at each other. Write it from NAME_1's perspective.