Beyonce's sister 'Solange' Celebrate birthday with lover

Solange Knowles celebrated her 28th birthday on Tuesday with her boyfriend of five years. 

And if a new report from MediaTakeOut is to be believed, it was a double celebration as the publication claims 51-year-old video producer Alan Ferguson proposed to her on Monday. 

While Solange has not yet commented on the report, she did take to Instagram to share a sweet snap of them cuddling in the water on a tropical beach while she grinned delightedly at the camera.

She wrote: 'Today couldn't have been more perfect. I couldn't have smiled harder. Thank you for all of your lovely and wonderful wishes. They warmed my heart and I simply feel grateful for all of the love.'

If Solange is indeed engaged this will be the second marriage for Beyonce’s little sister.

She was previously wed to Daniel Smith, her high school sweetheart and the father of her son Julez, from 2004 to 2007.

Despite their split, Solange has nothing but praise for her ex.

'We co-parent really well,' she said. 'I'm able to say, "I need to finish this album, can you step up and take care of the boy?"'