The Canadian star, 25 today, has been relaxing on Miami Beach in the US for the past couple of days.
She has updated her Instagram on three occasions showing her drinking a cocktail in her bikini and also sharing a selfie.
She uploaded the pic taken as she lies down on the beach in her green swimsuit, with the caption: “What is this selfie thing?”
This comes as she also shared two other images of her smiling at the camera and cheekily pouting with a cocktail in one hand.
She joked in the caption: “Single? Nah double.”
Predictably, some of her 1.9millon followers took to the comment section to gush about the star.
One wrote: “It is great to see that you can be a professional athlete, and still have a life.
“I think this is very important for the next generation of all athletes, not just tennis players.
“Too many people think you have to focus on your sport 24/7 and never enjoy life. Kudos to you.”
“What is this selfie thing?”
Another added: “You are so stunning and so amazing.”
While another had an inspirational message, saying: “Relaxing before tough tournaments.
“Maybe some semi-finals and finals soon. Go get them.”
And many congratulated her on turning 25 with a number of birthday messages.
Bouchard has had a decent few months after falling out of the top 100.
She’s now number 80 after reaching the quarter-finals of the ASB Classic in Auckland in December.
She then reached the final of a tournament in Luxembourg.
Bouchard was overpowered by Serena Williams in the second round of last month’s Australian Open.
But she showed glimpses of her best tennis to make the quarters at Newport Beach in the US later in January.
And the Canadian can also take heart from her narrow loss to Simona Halep at the Dubai Duty Free Tennis Championships earlier this month.
“Bouchard played well,” Halep told reporters after the match. “The level was pretty good. I served very well. At some points I really ran very well. I’m confident. I feel good on court even if I’m tired.
“It’s always a tough one against (Bouchard) because she stays close to the baseline and takes the ball very fast.
“I tried just to push her back as much as possible. After, when I had the chance, I was aggressive and I finished the points.”
Bouchard is known for being the first Canadian-born tennis player to reach the final of a Grand Slam tournament in singles four years ago.
And she is has become an Instagram star with nearly two million followers and she loves sharing cheeky pics.
The star is hoping to climb back up the rankings this year – her highest was number five in 2014.