<prompt> Human: Hi,I share a house with two other roommates, A and E. The total rent for the house is 1500 a month, we also pay about 200 a month in utilities. For rent I pay 600 as I have the master, and A and E pay 450 each as they have smaller rooms and share a bathroom. Utilities are divided and shared. A met a girl two weeks ago at a night club, and we have been seeing her around at our house almost 247 ever since. We were told by A yesterday that the girl had been kicked out of her house and would be staying with us for an undetermined amount of time. The girl has no car, no job, and claims to go to college about 45 mins away so, without a car, she is basically not going to school and will be here 247. With all things considered obviously this girl will be staying here and using up our resources for a long while, so me and E, the other roommate, are trying to come up with a solution that would make us more accepting of this new girl living in our house.We have proposed charging A an additional flat 200 a month to cover the new girls use of extra utilities, use of bathroom, kitchen, electric, water, etc. We want to set this up now so it is clear she will not be living at our house rent free.What I want to ask you, personal finance, is if it is1. Acceptable to charge her extra2. If 200 per month is too much, or too little, or just enough. We figure 150 for space use 50 for utilitesTLDR: House is 1500 per month. Roommates fwb with no car or job moves in unannounced and they make out all day on our couch while using up more house resources. Roommate pays 450 a month, how much extra should we charge him to put up with this girl living with us.  <response>: No job, no school, go kicked out of her place, picked up your roomate at a bar. I can smell a shitstorm of drama coming your way. 