The cast of Big Brother has made an art form out of sparking romances with fellow houseguests, continuing to prove that love truly knows no bounds — not even being trapped in a house together for 99 days.
While some of the couples that form in the Big Brother house stay there, others have turned into stable marriages and Big Brother babies.
So celebrate the first U.S. season of Celebrity Big Brother, here are some of the most memorable showmances of all time.
Jessica Graf and Cody Nickson – Season 19
Graf and Nickson were immediately into each other after meeting in the house, isolating themselves from their other housemates for much of the season.
It's this relationship that ended up ruining both contestants' games, however, because while Graf was well-liked, Nickson struck many of his roommates the wrong way. Despite not taking home the prize, Nickson still won America's Favorite Houseguest, and the couple is currently competing together on The Amazing Race season 30.prevnext
Mike "Boogie" Malin and Krista Stegall – Season 2
Malin and Stegall were two halves of one of the show's first really memorable showmances, with Malin even proposing to his Big Brother housemate during the live season finale.
While one of the more dramatic relationships on the show, the two didn't last long, and broke off the engagement soon after.prevnext
Daniele Donato and Dominic Briones – Season 13
Returning for her second season, Donato met Briones, with whom she quickly became best friends. Two years later, the couple tied the knot, and still remain together.prevnext
Corey Brooks and Nicole Franzel – Season 18
On Franzel's second round in the house, she got involved with Brooks, but the relationship soon fizzled after they left the house. For good reason, however...prevnext
Nicole Franzel and Victor Arroyo – Season 18
Although the two started off on different sides of the Big Brother house alliance system during their season, Franzel abandoned her showmance with Brooks to begin dating Arroyo after the show. The two are still going strong!prevnext
Mark Jansen and Elena Davies – Season 19
While Jansen appeared more into Davies than she was into him during their time in the house, they two became more serious after the show wrapped. The two currently live together in Texas.prevnext
Shelli Poole and Clay Honeycutt – Season 17
The couple soon known as "Clelli" were immediately joined at the hip when they entered the house, but neither one lasted very long on the show. Poole broke down in tears when Honeycutt left, but even after being sent home the next week, the couple never dated outside the house.prevnext
Jeff Schroeder and Jordan Lloyd – Season 11
One of the most loved couples in Big Brother history, Lloyd won season 11 while Schroeder earned the title of America's Favorite Houseguest. After competing on season 13 of the show as well as season 16 of The Amazing Race, the couple is now married with a son.prevnext
Brendon Villegas and Rachel Reilly – Season 12
After entering the Big Brother house as total opposites, Villegas and Reilly soon became two halves of "Brenchel," one of the most famous showmances. Returning in season 13, Reilly won the $500,000, and they went on to compete on two seasons of The Amazing Race. They're now married with one child.prevnext
Amanda Zuckerman and McCRae Olsen – Season 15
Zuckerman and Olsen were inseparable during their season, despite some lingering ex issues on Olsen's part. The two dates for a short time after the show until 2014, when they had a messy break-up on social media, with Zuckerman getting upset with fans for getting involved in their relationship.
Photo Credit: CBSprev