<human>: Can you provide a brief overview of the text?

I'm an undergrad college student. This summer, I started research with a professor I really like. She asked me to housesit for 2 weeks while she traveled. I have been watering her plants, feeding her cats, cleaning the litter box, and taking out garbage. I'm 1 week into the housesitting right now.

Pay never came up in our conversation. I know that I should have clarified beforehand, but I just assumed I would be paid and honestly felt awkward talking about money (dumb of me, I know). Obviously, I'm going to keep my commitments at this point. I'm not going to let the cats starve, and I have a decent amount invested in the working relationship I have with this woman. 

Basically, I'm wondering if/how to bring up my pay for this? I don't know if it's too late at this point, in which case I might just have to take a loss and be more assertive next time. There's another student who did the house-sitting for 2 weeks before me, so I'm thinking of texting her and asking her if they've discussed pay or anything.
<bot>: Agreed to house-sit for my boss. I'm already 1 week into it. We never discussed pay. Is it too late at this point to bring up payment?