Welcome to the forum. I'll try to help. However, as a regular reader of the forum, I suspect you can predict my replies. As we have said innumerable times, hand-genital contact is entirely safe, with no STD risk. Oral to genital contact, if not protected by a condom, carries some STD transmission risk, but quite low for most STDs and zero risk for some of them. And oral contact with the skin, anywhere on the body, carries no STD risk at all. When STDs involve the mouth, generally they are localized to the back of the throat (except for oral herpes); and saliva inhibits all STD bacteria and viruses, so contact with saliva on skin is always safe. In my 4 decades in the STD business, I have never seen a patient with contacts like yours who had any STD.
In summary, there was absolutely no risk of any STD from any of the exposures you describe. No testing is necessary; if you have a regular sex partner, it is safe to continue unprotected sex.
Here is another thread that explains the biological reasons why exposures like this carry no risk. Read the entire discussion; some of the important points are in follow-up comments:
http://www.medhelp.org/posts/show/1119533
Best regards-- HHH, MD