Pulev, 37, was hit by a huge backlash but insisted: "You may have seen a clip of me kissing a female reporter following an interview after I won my fight Saturday night.
"The reporter, Jenny, is actually a friend of mine, and after the interview, I was so elated, I gave her a kiss.
"Later that night, she joined me and my other friends at my post-fight celebration.
"On the video, after our kiss, we both laughed about it and thanked each other. There really is nothing more to this."
But claims Sushe has now hired high-profile lawyer Gloria Allred to fight her case against Pulev.
Allred, 77, specialises in sexual assault cases and is described as "the most famous woman attorney practising law in America today" on her official website.
"COMPLETELY BLINDSIDING"
A press conference has reportedly been scheduled for later today.
Vegas Sports Daily, who Sushe works for, said she was the "victim of an unwanted, unexpected and unsolicited forceful kiss" and are investigating the incident.
A statement read: "What happened to Ms Sushe was completely blindsiding and unwarranted and we share in her shock, hurt, embarrassment and general outrage.
"We want to make it clear that women should feel safe and comfortable to exercise the duties of their job, free of abuse, advances, harassment, etc in the workplace."
Sushe had asked Pulev, the IBF's No1 heavyweight contender, whether he deserved a shot at Tyson Fury.
He immediately replied "yes" before he put his hand on her chin and kissed her on the lips.
The unsuspecting interviewer awkwardly laughed it off, but furious fans on social media called for her to press charges.