Welcome to the forum.
Of course no two exposures are exactly alike. However, the consistent response on this forum for 7+ years has been that there is no risk of sexual transmission of HIV if a bare penis (no condom) does not penetrate another person's vagina, rectum, or (rarely) mouth. In any case, it is statistically unlikely the stripper has HIV anyway. To your specific questions:
1,3) There is no significant HIV transmission risk from the exposure described. I would consider the butt cheek sort of exposure you describe as safe sex, with no risk for HIV and little for other STDs.
2) Hand-genital contact never has been known to transmit HIV.
I hope this helps. Best wishes-- HHH, MD
Thank you so much for your time doctor.Last thing I want to know is , should I not do the hiv test for this exposure and why is there no significant risk for hiv if vaginal fluid touches your penis without penetration. I just want to educate myself to get rid off the irrational fear i am having.
Thanks again for this amazing thing you are doing.