Jennifer Lopez has been pictured kissing Ben Affleck for the first time since they reunited last month - and just hours later the singer took to Instagram – to pay a special tribute to her "baby sister" Lynda.MORE: Where is Jennifer Lopez living? Inside homes with Ben AffleckThe 51-year-old posted two pictures on social media, showing her and Lynda posing together at Nobu on Monday night, following a very emotional celebration in which the star gave a tear-jerking speech that she showed off on