Jesse James and Kat Von D just announced their engagement Thursday, and a source tells Radaronline.com that they plan to marry next month.
"Jesse and Kat don't see any reason why they should wait to trade vows," the source said. "They are madly in love with each other and want to make everything official."
The wedding will be small and non-traditional and take place outside of California, according to the source.
This will be Jesse's fourth marriage, and the mistress who broke the news of his infidelity to Sandra Bullock last year doesn't think it will last.
"Kat what in the world are you thinking?" Michelle Bombshell McGee told Radar. "I was with Jesse during his marriage -- the guy's not faithful, he doesn't have a faithful bone in his body!"
Bombshell goes on to mock Jesse's stint in sex rehab and call him a pig and worse.
"If he did it to me, if he did it to Sandra, he's gonna do it to you, too - once a cheater always a cheater," she said. "He cheated on his wife, numerous times."
Jesse has a rosier view of his plans to marry Kat.
"2010 was actually the best year of my life because I fell in love with my best friend. An amazing woman who stood behind me when the world turned their backs," he told People.