Russian girl got cum on her face after cool sex

If before my stepsister Mila temporarily moved into my apartment, she was trying to solve her housing problems, then after she started living with me, she simply gave up on them. Today I honestly and openly tell her about this. Well, when I give arguments that I need to sometimes go naked and fuck different girls, my sister not only allows me to be with her in a negligee, but also gives me a blowjob, after which she fucks in full. Well, after all this, the number of sex I have will increase, and the variety will decrease significantly.