Tendencies.
This is a little jibe. (Actually you may recognise some of this from
the Not the Nine O'clock News "Gay Christian" sketch,
although it's a little perverted from the original.) My point is this:
nobody's sexuality is a tendency. It's who they are.
It's a point of self identification.
Saying I have homosexual tendencies is like saying I
tend to have a willy, or I tend to have brown eyes.
(By the way, in case you were wondering, I have a willy, and I have
brown eyes. Oh, and I'm gay too.)