Jessica Alba looked glowing and gorgeous while stopping by The Tonight Show to chat with Jay Leno about her baby bump, her upcoming movie Spy Kids 4 and how she disciplines 3-year-old daughter Honor Marie Warren. Yes, the stunning starlet is the disciplinarian!

Although Leno pressed Ms. Alba to reveal the sex of her baby, she stayed tight-lipped, however X17online exclusively reported earlier this week that the 30-year-old actress is having another girl. She's due this September.

Watch Jessica discussing her upcoming movie and her love of scratch n' sniff stickers ... after the jump.