Selena Gomez is looking sexy in a see through t-shirt, showing her pink bra and some tummy skin at an airport in Puerto Rico. Justin Bieber’s girl friend is preparing to visit the war-torn Democratic Republic of the Congo as part of her humanitarian work for the United Nations Children’s Fund, or UNICEF. she has been a UNICEF ambassador for two years, and has visited Ghana and Chile in a bid to raise awareness of the organization’s work with children. Selena is currently on her world tour with her boyfriend, Justin Bieber.