Posing next to the pool at her home in California, the 32-year-old pop star beamed into the camera next to her love of 15 months.
PICTURED: Britney Spears shows off tanned and toned figure in poolside snap
'Hola from Spears Beach aka mi casa' the star captioned the picture, which shows her wearing a facemask for the occasion.
Recent reports seemed to suggest the couple's relationship was in trouble, with one source claiming the pair had split some time ago.
But this image certainly seems to put those claims to bed, with the couple looking happy and relaxed in one another's company.
Britney is currently in the middle of her Las Vegas residency, which is due to finish in February 2015. However, the star has apparently been offered a multi-million dollar sum to extend her time in Las Vegas, after proving a huge hit for the company.