Washington [US], March 31 (ANI): Singer and actor Selena Gomez had a fun night out with her younger sister Grace. She shared a series of adorable pictures with her in which they can be seen making silly poses with chopsticks, reported People. Gomez wore a black top in the photos and sat next to Grace, 10, who sported a pink shirt that showed a peek of the cartoon character Tweety Bird. The young girl also appeared to have a black and pink plaster cast on her right arm. “Sissy date night,” the ‘Only Murders in the Building’ star captioned the post. Grace grinned and held a set of chopsticks nea…