Snooki quit drinking after her breast milk became contaminated with alcohol.

The former 'Jersey Shore' star - real name Nicole Polizzi - says one particular night clubbing after the birth of her son, Lorenzo, now 16 months, left her milk tainted and she has vowed never to repeat it.

Writing in her new memoir, 'Baby Bumps: From Party Girl to Proud Mama, and All the Messy Milestones Along the Way', she said: ''My boobs ran like a river and the entire front of my dress was soaked.

''I could smell the sake bombs in the bottle. My milk was so full of alcohol, I could have used it to start a bonfire in the yard. I could have cleaned the toilet with it.''

Snooki, 26, also details in the book how she met fiance Jionni LaValle, unflatteringly describing him as ''some random guy I picked up at a club.'' However, she adds she soon realised he was more than a ''smush buddy''.

They didn't plan Lorenzo, but as soon as they found out she was pregnant, she writes how they both cried out: ''We're keeping it.''

The couple's pregnancy was smooth, but Snooki says their sex life was affected.

She has previously said: ''Having sex when you're eight months pregnant ... you have this huge belly and sometimes you get horny, [but] you can't have sex like you used to. It's boring. The sex is boring when you're pregnant because you can't do much.''