Jenni 'JWoww' Farley will have a fight with her fiance on their wedding day, according to her 'Jersey Shore' co-star.

The reality TV recently revealed her boyfriend of over two years, Roger Matthews, proposed during a skydiving lesson and while her fellow MTV star Vinny Guadagnino is thrilled for her, he joked there could be a punch up on the big day.

He told Us Weekly: ''She's going to fist fight Roger the day of the wedding!''

Vinny also said he had been expecting the proposal and joked he hoped the wedding goes ahead.

He said: ''I'm very excited. I have to [go to the wedding]. We're like a family.

''I'm glad that it finally solidified. Hopefully they go through with it.''

Speaking about the proposal, JWoww revealed she was shocked but couldn't be happier with her new fiance.

She said: ''I look over and see a hand-written sign: 'Jenni, will you ... ' and then I turned to him and freaked out.

''The whole time I'm screaming, 'What are you doing? What's going on? He's like, 'I want to spend the rest of my life with you! Will you allow me to?'

''If I had to imagine a perfect guy, it would be him.''