Should a babysit my friends kids?

My Bestfriend of about 10 years is starting a new job that requires 2 weeks of training. Her husband is also starting a job as well. She has a 1 year old and a set of newborn twins… The problem is she says she will pay me but I know she can’t afford to because she has been struggling financially for the last year and she wouldn’t be able to pay me until she receives her first check so I’d be watching them for free 6 days a week , 8 hrs a day, for 2 weeks. I offered to just watch the 1 year old because I feel like she would be the easiest but she told me I have to watch all 3. My mom is telling me that this is an awful idea considering I’m not used to children and she doesn’t want me bringing the kids to her house but I really want to help her out because she’s really been there for me.

Should a babysit my friends kids?
Should a babysit my friends kids?
Post Opinion