Lindsay Lohan is now a big sister once again. While she was in court yesterday, her dad’s girlfriend Kate Major was giving birth.

Major gave birth to a baby boy in Florida on Wednesday, and the on-again, off-again couple named him Landon Major Lohan.

Michael Lohan told Gossip Cop that Landon weighed in at 7 pounds, 5 ounces.

This isn’t the only new sibling the Mean Girls has received this year, as we previously reported that Michael found out through a DNA test back in November that he was the father of 17-year-old Ashley.

Ashley’s mother, Kristi Horn, has been trying to prove Michael was the father of their daughter since she was born in 1995. Ashley was born in 1995, right inbetween his two youngest children Ali (born in 1993) and Cody (born in 1996).

Although it was considered that Michael cheated on his then-wife when he conceived Ashley, he claims they were separated at the time.

Michael found out he was definitely the father on an episode of Trisha Goddard.