Although she previously denied undergoing a boob job, Kylie Jenner has once again sparked speculation she could have gone under the knife thanks to her latest glamorous night out during her holiday in Costa Rica.
 
According to "Daily Mail", the 19-year-old Keeping Up With The Kardashians star put on a very busty display as she stepped out with her sister Kim in a shiny white dress - complete with a daring, plunging neckline.
 
The conversation has been taking place following her recent Instagram posts, with one person querying, 'Did her boobs just get bigger AGAIN'.
 
One particular image sees the reality starlet looking rather buxom in a flesh-coloured bandeau top.