Is it normal to check out other guys?
Yep.Totally normal
Yes. Noticing or appreciating other guys is normal, whether you’re single or in a relationship; what matters is how you act on it and what boundaries you’ve agreed on.
Yep—it’s normal to notice people you find attractive, and that doesn’t automatically mean anything about your sexuality or how you feel about a partner. Sometimes you’re just appreciating the view; brains have eyes, unfortunately for subtlety.
People draw the line in different places: a quick look may feel like no big deal, while prolonged staring or flirting might feel disrespectful to a partner. If you’re in a relationship, the useful question is whether your behavior fits the boundaries you’ve both agreed on—not whether you ever notice anyone else.