Zachary Quinto's boyfriend knows how to keep it humorous when the moment arrives.

Zachary Quinto's Ex Reveals Something 'Nice' About Their Former Romance

On Saturday, Quinto posted a photo on Instagram where his beau, Miles McMillan, is driving a car and a giant cloud of smoke can be seen outside the driver's window. So naturally, the actor must have thought it would be a good idea to capture the moment as McMillan opens his mouth looking like he's breathing out that smoke.

In the caption, Quinto tagged his boyfriend and wrote, "exhalation of our pilot."

 exhalation of our pilot. @milesmcmillan

A photo posted by Zachary Quinto (@zacharyquinto) on Nov 28, 2015 at 3:23pm PST

Is Zachary Quinto & Miles McMillan's Relationship Similar To Couples On HBO Series 'Looking?'

Meanwhile, Quinto opened up on how there are celebrities out there who have yet to reveal their sexual identity and have come to him for advice. In an interview with Attitude, the actor mentioned that he talks to them about what he went through to see if that helps.

"I just share my experience and say, 'This is how it went down for me, this is how I feel,'" Quinto said via On Top Magazine. "I tell them, 'Trust that even if it means you're not as famous, or even if it means it's not exactly what you thought it would be, it's still more valuable when you're assessing your life at the end of that.'"

He also opened up on why he thinks World AIDS Day is "utterly essential."

"Not just in marking the advancement, progress and fight against the disease, but also cultivating knowledge and awareness of it for people all over the world," Quinto said.

Tags: Zachary Quinto Miles McMillan