Solange shows stretchmarks on her stomach in lovely green dress

Beyonce's sister Solange stepped out in New York for a charity event wearing this lovely bright green floor length dress with matching trousers. She left some buttons undone and (might not be deliberate) showed the stretchmarks on her tummy. People were talking about it on US Twitter so I went to look for the pics and zoomed in. We are humans, we are allowed to have stretchmarks.