LOLOL! We met our tour group and a white couple kept looking at us. I was very self conscious about it until I realized they were lost and asked us if they were on the same bus. They were just looking at us because we were speaking english. It's been a few years, I am far less self conscious, and yes, even with my BF looking like I rented him, nobody cared. On a different day we did a boat tour and one of the hosts was a woman who was very interested in us. She finally asked us about how we knew eachother so we explained we were friends from Canada but my 'friend' is from Taiwan.
In our travels we did spot a few older white guys with much younger rented boys. It was very obvious and new to me.