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...and I'm sure the pot-loving party girl will be a GREAT influence on them!

When Jon Gosselin and Hailey Glassman celebrated their recent engagement at the V.I.P Room last week, a source tells In Touch Weekly that the party princess exclaimed, “I can’t wait to be a stepmom!” The insider added, "She was saying she thinks it will be fun and how much she loves kids, and that she has always wanted a big family. She really thinks being a stepmom will be great and she won’t have to discipline the kids. She sees her role as a fun, cool big sister. She thinks the kids will all like her because she’s going to spoil them rotten."

While Hailey is thrilled about becoming a mother figure to Jon's eight children, another insider reveals that soon-to-be ex-wife Kate has been "crying herself to sleep," and we're guessing Hailey's latest remarks will push her over the edge. The insider continued, "When she found out what Jon had done, she saw it as the ultimate betrayal. It was like a knife in her back."

We'd love to see a smackdown between Kate, Jon and Hailey...especially if reality TV cameras are rolling! Think that would ever happen?