Weird RA and TA situation

[UltraPro]

Hello, so i am currently a masters teaching assistant, but was recently offered an RA position with a professor other than my advisor for the following year in geochemistry( which is weird because i have almost no chemistry, i study geophysics). Is this a weird situation or am i making too much of this? I def have the skills required to be a RA ( I know how to take water samples), but I think it would be weird to work for someone other than my advisor.

hmm anyway, hope u guys are having a good summer and good luck on all your adventures!

[DarwinAG]

In my opinion, you want to work with as many different people as possible. Your advisor will understand. He/she does not have claim to you. Plus, it is nice to develop other academic relationships outside of your advisor.