Do astronauts get hard in space?

I'm curious to know, do astronauts experience any difficulty with physical arousal or sexual function while in space? Given the unique environment of space travel, including microgravity, radiation exposure, and other potential stressors, could these factors potentially impact an astronaut's ability to maintain sexual health and well-being? Additionally, are there any specific measures or protocols in place to support astronauts' sexual health and privacy during long-duration space missions?