Eric Johnson, Jessica Simpson Eric Johnson, Jessica Simpson

From the looks of it, Jessica Simpson and Eric Johnson spiced things up a little on Valentine's Day.

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Simpson posted three 50 Shades of Grey-themed photos of herself and Johnson to her Instagram account Sunday morning. In the photos, Simpson is clad in a black blazer and lacy stockings, while Johnson is shirtless and in jeans.

"I'm so in love with you #50SHADES OF JOHNSON," Simpson captioned one photo, in which she and her husband are locking lips.

I'm so in love with you #FIFTYSHADESOFJOHNSON

A photo posted by Jessica Simpson (@jessicasimpson) on

Simpson, 34, and Johnson, 35, were married in 2014 and are the parents of daughter Maxwell, 2, and son Ace, 1.