Jackie Apostel stuns in a cut-out dress while larking around with 'bestie' Harper and shares picture of herself kissing boyfriend Cruz on Italian holiday with the Beckhams

Jackie Apostel posed with her boyfriend Cruz's sister Harper Beckham on Sunday as she continued to document their Italian holiday.Taking to Instagram, the singer, 30, looked gorgeous in a barely-there, cut-out blue gown as she pulled faces with 15-year-old Harper, whom she previously described as her 'built in bestie'.Meanwhile, among the holiday photo album, Jackie was snapped sharing a passionate kiss with Cruz, 21, as she sat on his lap with the sea stretching out behind them.German-Brazilian stunner showcased her toned pins in a short leopard print cover-up as she wrapped an arm around her man, while Cruz held on tightly to Jackie as he leaned in for the smooch. Other images in Jackie's post also saw her flaunt her enviable figure in a strapless burnt orange bikini as she snapped an upside down selfie on the bed, with another swimsuit snap showing her in a skimpy cerulean blue two-piece. With her fashionista mother-in-law Victoria Beckham on the trip, Jackie also took the opportunity to show off her own sense of style, wowing in a black strapless dress and statement gold necklace in one photo. Jackie Apostel cosied up to her boyfriend Cruz's sister Harper Beckham on Sunday as she continued to document their Italian holiday on Instagram Meanwhile, among the holiday photo album, Jackie was snapped sharing a passionate kiss with Cruz, 21, as she sat on his lap with the sea stretching out behind themWhile others saw her modelling the same ice blue gown as the snap with Harper, with the eye-catching dress featuring a bikini-style top half that showcased her toned midriff.Captioning her holiday album, Jackie simply wrote: 'Ciao,' in reference to the Beckham clan's travels around Italy which recently saw them head to the Amalfi Coast and Portofino.It comes as this weekend the family were in Portofino where Victoria, 52, left little to the imagination in a nude bikini as she relaxed on their yacht.She and husband David then headed out for a family lunch with their children Harper, Cruz and his stunning girlfriend Jackie. After the lunch Victoria recruited Jackie to take some social media snaps of her as she posed in a stunning white slip dress with sheer lace detailing.David, 51, was also enlisted to snap a few pictures of his stunning wife who accessorised with a huge beige sunhat.While on the yacht before the lunch Victoria was busy topping up her tan in the skimpy bikini which showed off her incredible and youthful figure. Meanwhile David was showing off his shirtless physique and impressive muscles in a pair of yellow swim shorts while showering on the yacht. Other images in Jackie's post also saw her flaunt her enviable figure in a strapless burnt orange bikini as she snapped an upside down selfie on the bed Another swimsuit snap showed her in a skimpy cerulean blue two-piece With her fashionista mother-in-law Victoria Beckham on the trip, Jackie also took the opportunity to show off her own sense of style, wowing in a black strapless dress While others saw her modelling the same ice blue gown as he snap with Harper, with the eye-catching dress featuring a bikini-style top half that showcased her toned midriffThe family group then boarded a smaller boat and headed to shore for their lunch together.Harper looked stylish in a white summer dress as she sat at the table and kept cool with a handheld fan.Jackie meanwhile showed off plenty of leg in a nude minidress and strappy heels as she walked along the streets of Portofino, while her boyfriend Cruz wore a sporty blue co-ord. They have been soaking up the sun with their family on a European jaunt. Yet David and Victoria stole some time to themselves away from three of their four children, with estranged son Brooklyn, 27, notably absent from the family trip, as they enjoyed a date night in Portofino at a swanky hotel on Saturday night. The couple revealed they were returning to the hotel 29 years after they first visited, before their relationship was common knowledge in 1997. The footballer added a caption on the shot reading: '29 years ago we came to portofino to this hotel before anyone knew we were dating and here we are back again @victoriabeckham Portofino 97.' Victoria sent temperatures soaring during the night out as she sizzled in a black lace gown which flashed her perky bottom and lingerie underneath.She then cosied up to David for a snap, in which she also showed off her cleavage in the plunging gown – leaving very little to the imagination.