Yes, back then, it was just men raping men.
Before DADT rack rump rangers when caught were removed from ship immediately. This was so the crew didn't do them grave serious harm. There was no quicker way besides death to be released from the Navy.
My last cruise to Subic Bay was in 1965 and I can tell you there probably wouldn't have been a trial if a man raped a man. He might have gotten a swimming lesson though.
There were Benny Boys in Olongopo at least that was the story, I never saw one to my knowledge. Jitney rides were 10 centavos San Magoo was 25. Marcos kept a lid on most things.
I flew back out of Clark Field in 65 and shortly there after the government demanded we leave. Strangely shortly thereafter a volcano destroyed Clark I think.