Gisele Bündchen shared a sweet photo of herself on Instagram on Wednesday. The model and mom flaunted her frame in a string bikini while in a graceful, jumping pose on the beach along with her two dogs. Gisele drew a heart in the sand with the word "Grateful" inside, and she captioned the snap, "Thank you to all my dear fans who dedicate their time to leave a message here. Thank you for all the love. A kiss in your heart and have a beautiful day!!!!" Gisele's sexy swimsuit photo comes just days after news broke that she will be retiring from runway shows after nearly 20 years in the business. Brazilian newspaper Moda Estadão was first to report that the stunner would be walking in her final show during São Paulo Fashion Week this Spring. Meanwhile, her husband — and recent Super Bowl champion — Tom Brady has been posting his own cute news from the beach. Tom shared an adorable video of his son Jack surfing, saying, "Very proud of my future big wave surfer catching his first wave today!"