Προσποιούμαι ότι είμαι άρρωστος ως πρόσχημα για να γαμήσω δυνατά τη χαριτωμένη ετεροθαλή αδερφή μου

My stepsister always takes care of me, when I'm sick she helps me with my medicine and so on. This time our stepparents go out and I get very sick. She tells me that with a fuck it will go away and boy does it.