Welcome to the Forum. None of the exposures you describe put you at risk for and STD, including HIV. STDs are not transmitted by kissing, by masturbation (you of them or them of you), kissing your body , including your scrum or through condom protected sex of any kind. Your condoms stayed intact - you were protected.
In answer to your specific questions:
1. No, non of the activities you describe place you at risk for HIV or other STDs in the unlikely circumstance that either of your partners were infected.
2. No, the are no STDs specifically associated with bad odors. Bacterial vaginosis, which is not an STD and occurs in women without a male counterpart, is a common cause of s "fishy" vaginal odor for some women.
3. There is no medical reason for you to seek testing. If you need to do so for your peace of mind, do so but only if you promise yourself to believe the results.
4. See above. It would be too early for an HIV test which would be most accurate at about 8 weeks but, as I said, I see no need for testing.
5. The Home Access tests are fine but typically the counseling provided is not as good as what is provided when testing is done in person. You would be better off going to your local health department where the testing is accurate, confidential and affordable.
6. No. masturbation including mutual masturbation in which partners get each other’s genital secretions on one another does not put you at risk.
I hope these comments are helpful. Take care. EWH
Dear Dr.
Thank you very much for your comment. I will follow your advice. You have been very helpful and I appreciate it.
Best regards,