Sil and mil jugalbandi
My elder sil and mil are super entitled. They don't get along with each other but both are united in pressuring my husband and me to cave in to all their demands.
They won't ask anything directly but mil will call us to send something to sil and vice versa. By not asking I mean they just take whatever they want when they visit without asking, and if sil wants us to do something, her mother will call my hubby and tell him that hey I am requesting you to buy me this. Later we find out she gave it to her daughter.
If my mil wants to go on a foreign vacation, my sil will ask my hubby to take her on that foreign trip, saying that this is the only help I want from you, take care of mom etc her daughters will join too, that mama please take care of Grandma she is all alone. She herself will do absolutely nothing for her mom. My mil will keep on denying that she wants to go. She will just say if you want to take me I will go.
If we refuse then both get angry with only me not my husband. I become the villain even when my husband is setting boundaries. They all continue talking to each other but give me the silent treatment to punish my hubby for setting boundaries.
Husband can't stop talking to his mom and sister of course, nor do I want him to. Note: I edited the post to clarify my situation based on the comments I got