Charlotte: I feel like we don't belong here!
Carrie: That's because we're wearing shirts!
Miranda: Seriously, why don't straight men have bodies like this?
Carrie: Because gay men have the possibility of sex at the gym! If straight men had that they'd be working out all the time too!
Samantha: I've had sex at the gym!
Carrie: See, Samantha's doing her part to motivate the masses!