Britney Spears looked happier than ever as she enjoyed a leisurely afternoon in the sunshine with her fiance Sam Asghari as they prepared for a morning dip in the jacuzzi at their hotel in Cabo San Lucas over the weekend. While soaking up the glorious weather on her birthday getaway after turning 40 on Tuesday, the pop star was seen rocking a red string bikini, which showcased her phenomenal figure and bombshell curves. As she sat poolside outside her room, the mother-of-two smoked a cigarette and scrolled through her phone until her hunky husband-to-be, 27, met her outside in just a pair of swim trunks and a towel around his waist. Freedom: Britney Spears looked happier than ever as she enjoyed a leisurely afternoon in the sunshine with her fiance Sam Asghari as they prepared for a dip in the jacuzzi at their hotel in Cabo San Lucas over the weekend Spears, who kept her long platinum blonde hair styled in a messy updo, protected her light brown eyes from the sun under a pair of dark aviator glasses. Her man looked every inch the doting boyfriend as he brought her a blue flannel to put on after a long sunbathing session. On their walk to the pool, she slipped into a plain white t-shirt and a microscopic pair of red Adidas shorts. Looking good! While soaking up the glorious weather on her birthday getaway after turning 40 on Tuesday, the pop star was seen rocking a red string bikini, which showcased her phenomenal figure and bombshell curves Hot couple: As she sat poolside outside her room, the mom-of-two smoked a cigarette and scrolled through her phone until her husband-to-be, 27, met her outside in just a pair of swim trunks and a towel around his waist Smart: Spears, who kept her long platinum blonde hair styled in a messy updo, protected her light brown eyes from the sun under a pair of dark aviator glasses Sweet: Her man looked every inch the doting boyfriend as he brought her a blue flannel to put on after a long sunbathing session A source close to the couple recently told People that the vacation south of the border was just what Britney needed following the dissolution of her conservatorship. 'Britney was very excited. She loves beach vacations and hasn't been to Mexico in many years,' the source said. The getaway seemed to come just as she was feeling better than ever. Switching things up: On their walk to the pool, she slipped into a plain white t-shirt and a microscopic pair of red Adidas shorts Texting away: As she puffed away on a cigarette, the Toxic singer scrolled through her phone Vacation lifestyle: Spears patiently waited for her man to join her by the pool Happy days: A source close to the couple recently told People that the vacation south of the border was just what Britney needed following the dissolution of her conservatorship 'Britney was very excited. She loves beach vacations and hasn't been to Mexico in many years,' the source said 'She is doing well. She is taking care of herself both physically and mentally,' the source claimed. 'Sam is her biggest supporter. She just loves being with him.' The end of her restrictive conservatorship also came just as their relationship was blooming with their recent engagement. 'She feels very lucky to be spending her 40th birthday with him. Such perfect timing to be out of the conservatorship. She feels beyond blessed in so many ways,' the source added. Perfect timing: The getaway seemed to come just as she was feeling better than ever. On Monday, Britney claimed in an Instagram post that she was now on 'the right medication thanks to no doctor or conservatorship people,' though she didn't clarify if she was taking psychiatric medication or other kinds of drugs. She also wrote about her fasting to lose weight and claimed she could 'experience the most amazing high' via restricting her intake. The Stronger singer claimed her longest fast had last four days, though she had consumed some snacks during that period. On Thursday, she shared a bizarre video in which she acted out a skit as one of the therapists she said she had been forced to see for '10 hours a day, 7 days a week' amid her conservatorship. 'She is doing well. She is taking care of herself both physically and mentally,' the source claimed. 'Sam is her biggest supporter. She just loves being with him' On Monday, Britney claimed in an Instagram post that she was now on 'the right medication thanks to no doctor or conservatorship people,' though she didn't clarify if she was taking psychiatric medication or other kinds of drugs Focusing on herself: She also wrote about her fasting to lose weight and claimed she could 'experience the most amazing high' via restricting her intake A little concerning: The Stronger singer claimed her longest fast had last four days, though she had consumed some snacks during that period 'I'm not here to trouble you, I just want you to be completely relaxed. I'm here to help you,' Britney said in an eerily cheery tone. The singer got so frustrated with the quasi-fictional character that she let out a string of curses at the end of her video, along with a long burp. Prior to lying out on the beach, Britney was presented with a lovely B-shaped birthday cake on her flight down to Mexico by Sam. The cake was covered with roses and macarons and gold leaf and featured layers of meringue inside. Later on Wednesday, the happy couple took in a cheery fireworks display as they settled in to their vacation. Yum! Prior to lying out on the beach, Britney was presented with a lovely B-shaped birthday cake on her flight down to Mexico by Sam All out: Her beau also decorated their room with birthday balloons All rights reserved for this news site (dailymail) and under his responsibility