Why Shraddha uncomfortable in kissing Emraan Hashmi

Bollywood actress Shraddha Kapoor, who has earlier kissed Aditya Roy Kapoor, Siddharth Malhotra and Shahid Kapoor on screen, is feeling uncomfortable shooting an item number for 'Ungli', where she had to get cozy with 'serial kisser' Emraan Hashmi. According to the sources, Shraddha, who had displayed no inhibition earlier in locking lips on the silver screen, is showing tantrums on the sets of 'Ungli'. She is so uncomfortable doing raunchy acts with Emraan that she has even asked director Rensil Dsilva to change some scenes. But why is she being reluctant when she has done it before and has recently done a kissing scene with Varun Dhawan too for 'ABCD 2'.