I have never checked out or noticed another man in a real-life situation, but I can completely fantasize about it if I'm watching gay porn.
The thing is, outside of watching porn, I don't find men attractive at all. I don't really know how or why I started, but I began watching and getting off to gay porn.
'I was in a weird place after a messy breakup with a long-term girlfriend when I was about 24.