View the Gallery / 10 Photos »

When Saturday Night Live returns to television on September 26, Transformers star Megan Fox will be helping the sketch comedians kick off the 35th season of the show. At the moment, Megan’s also been spending some quality time with her ex-fiance, Brian Austin Green, and his son, Kassius.

An inside source dishes to Life&Style, “This is the perfect opportunity for her to show off her comedic skills, as she’s launching her new movie Jennifer’s Body [on Sept. 18].”

In preparation, Megan’s been filming a digital short with Andy Samberg. Ten dollars says it’s a car-washing audition.

Gallery Info: Megan Fox and Brian Austin Green go shopping with his son, Kassius.