Possess her

Without her noticing you slither under her shower and up her leg, entering her pussy and with that possessing Kim. Looking down you saw the massive tits you fantasized about your whole teenage years. Giving them a gentle squeeze you notice how big they were, compared to the other girls. You lean against the wall as your other hand goes down between your legs and starts fingering your sister's pussy. Thanks for her memories you can tell that she is horny as hell, since she hasn't seen her boyfriend the past few weeks, coz he was always busy. So soon enough you can feel yourself cumming in her shower. You feel that your body is still horny as hell, so what to do about it?