He is set to be a father for the first time, with girlfriend Mila Kunis expecting their first baby.
But Ashton Kutcher is showing no signs of slowing down.
The 36-year-old actor flashed a nasty gash on his stomach as he stripped off before a motocross meet on Thursday afternoon.
Stripping off: Ashton Kutcher stripped off before motocross riding in Los Angeles on Thursday
Nasty: Ashtopn showed off a nasty gash on his stomach as he stripped off to put on his biking clothes
He pulled up his white T-shirt to reveal the sore situated just above his right hip as he changed into
his biking gear at a park just outside Los Angeles.
The star had no qualms about peeling off his clothes in public, happily peeling off his trousers to reveal a pair of navy blue Calvin Klein briefs with a red band.
He donned a protective jacket and trousers along with sturdy looking boots, while chatting to a male friend.
Danger zone: The star is a fan of the high octane sport
Slim and trim: Ashton showed off his toned body as he prepared for the biking
Ready to ride: The 36-year-old actor donned matching protective gear as he chatted to a friend
Before he took to his bike, the star tried his hand at a spot of soccer, kicking a bright orange ball around.
Motocross is a form of motorcycle racing held on enclosed off-road circuits and is known as a physically demanding extreme sport.
Injuries are common in the sport which has high rates of injuries and hospitalisation with dirt tracks, ramps often used to aid riders in dare devil flips, long distance jumps and spectacular stunts.
Biking injury? Ashton looked down at the large cut on his stomach
Getting ready to go: Ashton prepares to hop on to his Motocross bike
Joking around: The actor seemed to be enjoying himself on his boy’s day out
Out in the wide open: Ashton and his friend were enjoying the sport in the stunning California wilderness
Earlier this month, Ashton’s fiancée Mila confirmed the baby news during a sit down interview with The Ellen Show.
‘We were actually able to hide it for a very long time,’ the star told host Ellen DeGeneres. ‘It’s amazing.’
Mila went on to explain that she and Ashton will be expecting the baby later this year, but would not give a specific due date or reveal the sex of their child.
Revving up: The actor donned a helmet and backpack as he mounted his brightly coloured bike
Kicking off: The star enjoyed a spot of soccer before biking
Sporting prowess: The actor was clearly in the mood for some outdoor sporting action
But she was more than happy to talk about her food cravings: ‘I’m very stereotypical. I eat sauerkraut all day long.’
Adding that her fiancée has been predicting peculiar food cravings: ‘He assumed that I was gonna have goofy cravings, so he stocked our secondary fridge with weird food.’
‘Just like pickles, and sauerkraut, or like anchovies, and ice creams…just in case at one point during this pregnancy I’d be like I really want something.’
So ready: Ashton sported a red hoodie over his trousers and boots.
No show: Ashton’s sitcom Two And A Half Men has been cancelled with the next season its last
A break: Ashton was enjoying time away from his show Two And A Half Men
Bilingual ambitions: Mila, who hails from the Ukraine, recently revealed her paramour was learning Russian so their child can speak both languages
Mila also revealed that Ashton was learning Russian so he and Mila (who speaks the language and is from the Ukraine) could raise a bilingual child.
The That 70’s Show alum is also planning on having a natural birth, saying: ‘We watched a couple of documentaries and we looked into the like the you know midwife aspect of it and things and spoke to my OB/GYN and realized that the hospital that I’m going to be labouring in does have a midwife, you know, Doula type of thing.’
She added: ‘So I’m going to do it as all natural as I possibly can unless there’s an emergency or something [goes] wrong.’
Happy couple: Mila Kunis pictured with Ashton last week with the actress showing off her blossoming baby bump.