The Evolution Of McGee And Delilah's Relationship On NCIS

Timothy McGee (Sean Murray) and Delilah Fielding (Margo Harshman) are two of the finest Feds to ever head into the field. They also happen to be one of the most adorable (and geekiest) couples on television. They revealed they were dating in the Season 11 premiere of NCIS. Since then, they've come a long way, both professionally and romantically. 

Click through for a look at the evolution of #McLilah's (McGee + Delilah) relationship.

See their adorable interaction with Abby in "Whiskey, Tango, Foxtrot" (Episode 1, Season 11 of NCIS) on CBS All Access.

Stream episodes of NCIS on CBS All Access.

Delilah's entire life changed the night an explosion rocked a gala she was attending. A piece of shrapnel lodged in her spine and subsequently paralyzed both of her legs. 

Terrified he was going to lose her, McGee rushed to the hospital to give his full love and support.

Watch the heart-wrenching episode, "Double Back" (Episode 13, Season 11 of NCIS) on CBS All Access.

When Delilah learned that one of her cases at the Department of Defense had ties to an NCIS case, she brought more than just her advice to DiNozzo and McGee—she also brought along an informant she called Sampson. He happened to be her ex-boyfriend.

To get any information out of the steroid-slinging ex, DiNozzo offered to arrange a coffee meeting between Sampson and Delilah, much to McGee's dismay. 

Watch to find out if McGee could put aside his jealousy in "Page Not Found" (Episode 20, Season 11 of NCIS) on CBS All Access.

After a long day of dealing with Delilah's ex and DiNozzo, McGee was ready for a peaceful evening with his girlfriend. However, something weighed heavy on his heart. Delilah told DiNozzo—not McGee—about her dream job in Dubai.

Once they were alone in the car, McGee asked Delilah why she hadn't opened up to him. She acknowledged that she was nervous the conversation would take a toll on their relationship. To prove his commitment, McGee told Delilah that he wanted her to take the job and pursue her passion, and that he would also have a key to his apartment waiting for her when she returned. 

Watch #McLilah take a major step in their relationship in "Page Not Found" (Episode 20, Season 11 of NCIS) on CBS All Access.

After working hard overseas, Delilah returned to the United States and immediately dove back into her work—without telling her loved ones.

When she arrived at a crime scene McGee and the NCIS team were already checking out, she braced herself for a confrontation. Once they'd solved the case, the two hashed out their issues. McGee may have been a little protective and concerned for Delilah's safety, but the couple kissed and made up.

Watch their sweet embrace in "Status Update" (Episode 18, Season 12 of NCIS) on CBS All Access. 

Moving in with a significant other can be tough, especially if each person has a slightly different idea of where things should go and whose stuff should be tossed to the curb. When McGee and Delilah signed a new lease together, they learned that compromise isn't always that easy.

A seemingly harmless inquiry about the move from Bishop sparked a (cute) exchange between McGee and Delilah that ended in the duo speaking in their secret, modified version of binary code. 

Oh, young love!

Watch the silly spat in "Viral" (Episode 6, Season 13 of NCIS) on CBS All Access.

Determined to get Delilah a Valentine's Day gift she'd remember, McGee enlisted the help of the women in the NCIS office. Face it, DiNozzo and Gibbs may not have been much help!

Thanks to a clever idea from Bishop, McGee decided to write a romantic poem that was sure to make Delilah's heart flutter. 

Watch McGee wrack his brain for the perfect present in "Decompressed" (Episode 14, Season 13 of NCIS) on CBS All Access.

The dinner table rules in the McGee-Fielding household are simple: You are only allowed to talk about work for an allocated amount of time during what is called the "dinner download." Once the timer goes off, you must move on to more "boring," regular conversation topics. 

While McGee typically follows the rules, one night he couldn't help but ramble on about a particularly perplexing case. To make matters worse, he used the meal Delilah spent two whole hours preparing to recreate the crime scene!

Watch the high-tension dinner take place in "After Hours" (Episode 17, Season 13 of NCIS) on CBS All Access.

Once they'd moved past the dinner debacle, McGee was ready to take this relationship to the next level. At the end of the special 300th episode of NCIS, McGee sat at his work computer and cracked a smile as he started to plan his proposal.

Will wedding bells soon ring for Delilah and McGee? 

Watch McGee browse for rings in "Scope" (Episode 18, Season 13 of NCIS) on CBS All Access.

After years of dating, McGee finally worked up the courage to ask Delilah to be his wife. While he had initially calculated a monumental location for the proposal, he realized he couldn't wait to make things official. McGee bent his knee in perhaps the most iconic space at NCIS: the elevator. 

With a huge smile, Delilah enthusiastically said yes.

Watch the touching moment on "Love Boat" (Episode 4, Season 14 of NCIS).

Shortly after the proposal, McGee and his betrothed finally tied the knot with a beautiful ceremony—but not before the couple found out that Delilah was pregnant!

What started out as a long-awaited event quickly became a "twofer" as the bride and groom's walk down the aisle turned into a fast track to parenthood.

Watch the doubly happy occasion on "Something Blue."

Stream episodes of NCIS on CBS All Access.