Selena Gomez

Justin Bieber may be thinking twice about passing on ex-girlfriend Selena Gomez.

Gomez, 20, took in some sun with friends poolside in Miami over the weekend — showing off an impressive beach body in a tiny bikini.

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Asked on Friday by a Boston radio DJ if she is single, Gomez said, "Yep! By the way, that would be awesome if someone asked if I wanted ice cream because that would be cool."

On- and off-couple Gomez and Bieber, 19, broke up last November -- but have been spotted together a few times since then. Most recently, Gomez posed with her arms around Bieber on a photo posted on Instagram in late April, a week after they were spotted kissing in Norway. "It's uncomfortable that everywhere I go, people know. I don't like that," she recently told InStyle. "Justin and I never really focused on the attention."

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With no boyfriend holding her down, Gomez will have more time to spend with her family. Gomez announced Sunday on Twitter that her mom, Mandy Teefey, is pregnant with her second child. "I have the best momma in the world," Gomez wrote, along with a picture of her mother's growing baby bump. "I love you so much."

Will Gomez be single for long — or is she still with Bieber?