My little stepsister is jealous of my girlfriend and gives me a blowjob while I'm talking to her on the call.

My little stepsister is very jealous of me, she always gets angry when I go out with my girlfriend or when I talk to another girl, she tiredly tries to separate me from her when I talk on the phone, she gives me a blowjob and starts seducing me so that I fuck her hard and I cum in her pussy.