Brother has sex with stepsister and teacher

My brother and his half-sister go to classes with the same teacher. During the lesson, Blair notices that her brother is looking at the teacher excitedly. Calling him aside, the sister makes a remark to Kyle, and he admits that he has already fucked with the teacher. The teacher resentfully goes to her room, as her intimate relationship with Kyle was a secret for everyone. Blair follows her to comfort her and finds out that the chick likes not only guys, but also girls. The teacher reaches out to kiss the student, and she accepts her caresses. Soon, they undress and start caressing each other's caps. At this point, Blair's brother enters, and the girls meet him with a double blowjob. The male has sex with his sister and teacher, at the end filling their mouths with sperm.