Credit: Stephen Lovekin/Getty Images Photo: Alan Ferguson and Solange Knowles at the NYC Premiere of Blue Jasmine, July 22, 2013

Have you heard the maybe-news? Rumor has it that Beyonce's sister Solange may be walking down the aisle herself soon — although nothing's confirmed quite yet, since all we have to go on is a MediaTakeOut source. However, one thing's totally clear: the younger Knowles sister, who turned 28 years old today, is having a very happy birthday, and she posted a cuddly photo to Instagram to prove it.

The photo, which has no caption, shows Solange cuddling up to a man — perhaps her rumored fiancé, longtime boyfriend Alan Ferguson — while having a tropical swim. Earlier photos imply she's been spending some time in Jamaica, finishing up her latest album. A couple of weeks ago, she posted a poolside photo saying, "Now finishing in Jamaica. May my creation be blessed by Jah."

Earlier today, Solange posted an adorable portrait of herself on a boat, thanking her fans for birthday wishes. "Today couldn't have been more perfect. I couldn't have smiled harder," she says. "Thank you for all of your lovely and wonderful wishes. They warmed my heart and I simply feel grateful for all of the love."

Sounds like she and her dude are having a lovely vacation — but just how lovely is it? Either way, happy birthday, Solange!