Get a room! Oh, wait ... 

Jessica Simpson posted one intimate snap via Instagram on Tuesday kissing her fiance Eric Johnson ... in bed!

"Goodnight kiss. I love this man.," she captioned the passionate photo.

It definitely looks like there's still a big spark between the longtime couple. And after two adorable kids, the pair seem more in love than ever. 

We can't wait to see Jessica and Eric tie the knot this year -- she's already hinted that their big day will be happening soon. 

What do you think of Jess' personal pic? Tell toofab in the comment section below, and click "Launch Gallery" above to see even more photos of the 33-year-old's super cute family! 

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