I am pleased I could help. Take care. EWH
Thank you so much for your help.
Welcome to our Forum. I'll be pleased to provide the information that you seek. Inserting your finger into a woman's vagina falls into the broad category of masturbation. STDs are not transmitted from person to person through masturbation, thus there is no risk at all for any STI from the events you describe. You have nothing to worry about and there is no need for testing.
In answer to your specific questions:
1. Can I receive an std through inserting my fingers in a vagina?
No, this is a no risk event.
2. Can I get an std after adjusting myself?
No, STIs are not transmitted from person to person through touching, even if the person has genital secretions on their hand.
3. If one of the dancers had an std could I have passed it to the other through my actions?
No, there is no risk for STD from the actions you describe.
I hope my comments are helpful to you. EWH