Is my housemate a prostitute? Here’s the story

I’m living in a share house with 3 other people and recently an 18 year old girl moved in. She is studying hospitality and has no job yet always manages to have money somehow.

After living together for 2 months I’ve noticed some things about her.

Her biological mother is confirmed to be a prostitute and drug addict and my new roommate was adopted by a foster home.

She visits her biological mother every week and doesn’t come home for 4 or 5 days at a time. Sometimes she’ll arrive home early in the morning and sometimes very late at night. When she’s home she always seems really tired and wants to smoke pot.

After 2 months she is still unemployed and studying yet when I ask her about money she says she does a lot of babysitting. Strange though when she goes out to babysit she’s usually wearing something quite provocative. My other roommate dropped her off near her mother’s house one time but not the actual house so she could discreetly walk there without us knowing where it is.

She has very easy access to drug dealers.