I think a lot of the times, it depends on the bottom. When It's very obvious when he'd rather be fucking a pillow than the bottom.
When John Thomas first came on, Tim loooooooved fucking him. He'd insert himself into every scene with John when he wasn't even scheduled.
I also think he cares more about the hole he's fucking than the actual person. He's addicted to gaping a hole - that's his thing.
You right tho, there are scenes where it's like you gay4pay Tim? Like, I get it, there are some unattractive bottoms you gotta fuck but shit, like, pretend a little better.