First Jesse slammed his sex life with Sandra — now he claims he made a ‘big mistake’ when tying the knot with ‘America’s Sweetheart.’

Does Jesse James, 42, just enjoy saying things that make us dislike him even more? The former Monster Garage star and tatted up motorcycle enthusiast reportedly called his second ex-wife (yup, he’s had three) Janine Lindemulder, just two weeks into his 2005 marriage to Sandra Bullock and dropped a bombshell! And no, we’re not talking about his mistress Michelle “Bombshell” McGee.

“Only two weeks after he married Sandra he phoned me and said: ‘I believe I really made a big mistake.’ I told him to calm down and just be a good husband but he started cheating on Sandra,” Janine tells RadarOnline.com. “While they were married he would also send sexy images of me with the word ‘Yum’ attached to them but we never had sex while they were together.”

Jesse clearly likes to speak without thinking first. Just recently he went on Howard Stern‘s Sirius satellite show and totally dissed his sex life with Sandra when asked who he’d rather sleep with: Sandra or Kat.

“That’s one’s an easy no-brainer,” Jesse tells Howard. “100 percent! She’s a vixen, man. I love her. The way she gets in my head and makes me feel. It’s a mental thing — just connected on a whole different level.”

Janine goes on to reveal that when she married Jesse in 2002, he sent her a sexually explicit text message … but it wasn’t for her.

“It was just the same pattern with me too,” Janine says. “Only two weeks after we were married he wrongly sent me a text that was supposed to be for another woman that read: How’s your Pu***.”

Classy. Well let’s see if the grass really is greener for Jesse’s fourth marriage to Kat Von D. But we know one thing, Sandra doesn’t need this crap and we hope she doesn’t think twice about you!

— Chloe Melas