Welcome to our Forum. I'll be glad to comment. The activities you describe- showering together and frottage are not risk activities with no meaningful risk for any STI at all. As for your activities in the shower, they are particularly low risk. Transfer of STIs from one person to another on hands and fingers is a no risk activity and in the situation you describe, with soap involved, the risk is lower still because of the antimicrobial effect of all soaps.
As for your specific questions:
1) I am scared that when she put the soap on her vagina and then on my penis head there was a transfer of Std. Is it possible chlamydia could by transferred this way? Because it was immediately?
See above. Transfer of secretions on the hands does not lead to infection and in your case, the presence of soap makes a no risk event absolutely no risk.
2) I am certain that my penis did not enter her vagina but maybe touched it for 2 seconds. Could this transfer Chlamydia?
No, no risk. There must be penetration for transmission of STIs such as chlamydia.
I see no reason for concern and no reason for testing related to this event. I hope my comments are helpful. EWH
Does the soap kills the chlamydia bacteria immediately if present?
Yes.
the sort of discharge you describe is normall. No change in my opinion or advice. EWH
Thank you for you quick answer doctor.
I have still 1 question.
Does the soap kills the chlamydia bacteria immediately if present?
And i would like to add that today i found a very very slight clear discharge when i was checking my penis. But i had a bowel movement 1 hour earlier and i was a bit aroused before i checked my penis? Could this be an explanation because i have been checking myself for 6 weeks know?
This exposure was the only sex-act i made so is this discharge just normal after a bowel movement or due to my arousal? And is it just me being in panic?
Kind regards