By Olivia Elgart For Dailymail. Jennifer Lawrence has opened up about one of her biggest concerns about doing her first nude scene: the appearance of her nipples. The year-old actress made the candid confession during an appearance on Ellen DeGeneres's talk show on Friday, admitting that she was so focused on how her nipples might look that she actually berated the crew after they made the set too warm. After the year-old TV host asked why Jennifer had chosen to take the plunge and do her first nude scene after vowing never to go naked on camera, the actress not only explained her motivation, but shared why she was so concerned about her 'nipples looking huge' as a result of the hot temperatures.