Jessica Simpson kissed fiance Eric Johnson on St. Patrick's Day. Credit: courtesy of Jessica Simpson

Jessica Simpson is feeling the luck of the Irish these days, as she shows off her beautiful family on her new Instagram account, which she started in January. The mother of two, 33, enjoyed celebrating St. Patrick's Day with her Irish fiancé Eric Johnson and her adorable son Ace, 8 months, and daughter Maxwell, 22. 

Simpson, who is currently planning her wedding to the former NFL star, shared a picture smooching her groom-to-be while he wore a "Kiss Me I'm Irish" T-shirt. 

The caption reads, "My Irishman has worn this shirt every year thanks to his Dad wearing it years before...of course I will kiss you!"

And the family's festivities didn't stop with a simple smooch. The Weight Watchers spokeswoman then made her way outside with her photogenic daughter. 

"Hot tub selfie," she captioned the precious picture.

Little Maxwell put her lips into a cute pout, posing for the photo with wet hair and her bright blue eyes showing. 

No news yet on when Simpson and her fiancé will get hitched, but a source recently revealed that the couple opted out of a destination wedding to Capri, Italy

They "decided to keep it simple," a source told Us. So they plan to get married somewhere nearby in Los Angeles.