Hi, I am new here. Been married for 4 years to a man that has 2 girls age 13&12 from previous marriage. And now we have our own 17 month old son. In this 3 years, I've been dealing with SDs laziness especially the 13 year old one. The 12 year old SD sometimes helps out in the house especially watching their baby brother when I'm busy doing chores but the 13 just sleeps until 3 in the afternoon. She'll come out when hungry and won't clean up after herself. Just toss her dirty dishes into the sink and leave her extra foods on the table and wait for me to clear up for her.