Nathaniel Massiah and Kit Connor / Instagram

Young guns were flexing in London recently. Kit Connor, the 19-year-old star of the Netflix series Heartstopper (which has been renewed for two more seasons) teamed up with Nathaniel Massiah, a 20-year-old powerlifter. Both hail from the South London borough of Croydon.

Kit Connor body
Nathaniel Massiah hits a side chest while Kit Connor strikes a side triceps. / Instagram

The duo went through a push workout of chest, shoulders, and triceps (with some biceps, too). It started with bench presses. Connor said, “I normally train with dumbbells, so I haven’t trained [barbell] bench press in a while.” Still, he benched 220 lbs. (100 kg.) and then hit a personal best of 231 lbs. (105 kg.). Massiah speculated that Connor probably had the strength for 110 kg. (242 lbs.). Massiah, meanwhile, benched 364 lbs. (165 kg.)โ€”but did we mention heโ€™s a powerlifting phenom, who dominated a powerlifting meet just two weeks earlier?

Kit Connor body
Kit Connor benches 105 kg. as Nathaniel Massiah spots. / YouTube

To see where Connorโ€™s bench press compares to other actors…

Kit Connor explained that he used to stick to a push/pull/legs split (chest, shoulders, triceps one day; back and biceps another day; legs on a third day), but he now does the classic Arnold Schwarzenegger split of shoulders and arms one day, chest and back another day, and legs a third day.

Kit Connor body
Kit Connor pumps out side laterals. / YouTube

Between sets of chest and shoulder exercises, Kit Connor talked about his fitness journey and the pressure on male actors to look diesel:

“The reason I got into the gym was kind of deep, to be honest. When I got cast in Heartstopper, it’s based on a comic book, and the character that I’m based on is like 6’2″, very big. And I was shorter than I am now [5โ€™11โ€], and skinnier. When it got announced, there were some people on the internet going like, ‘He’s a bit too skinny to play him.’ I saw that and was like โ€˜Shit.โ€™ So then I just started eating loads. And then I was like, if Iโ€™m eating this much might as well [train]. So I started just doing push-ups. I was doing like 200 push-ups a day, and the only thing developing was my chest. So if you look at Heartstopper, thereโ€™s a couple points where Iโ€™m wearing quite a tight shirt, and the boobies were looking quite large. I was like yes. But then I started properly hitting the gym. Itโ€™s good. Itโ€™s good for your mental health, I think.”

Kit Connor body
Massiah and Connor / Instagram

Watch the video of the Kit Connors and Nathaniel Massiah workout here: