While we didn't see this coupling on the main show, a bonus video from the series finale posted to MTV's website shows the co-stars getting very, very close (and vocal!) in the villa shower... and the bedroom.
"I've only been here a few days and I've came, I've seen and I've conquered," said a proud Alex.
"Me and Naomi started in the gang bang room, then we went over to the day bed, then back to the gang bang room..."
Naomi's attitude? "F**king loved it, mate."
Meanwhile, Olivia Walsh commented: "Naomi loves the Scouse schlong. I mean, first Joe, now Alex. She did say she wanted to leave with a bang though..."
Alex arrived in the villa last week as Gina Barrett's ex-boyfriend and immediately courted controversy by promising to have her back in the villa, then turning on her in front of the other housemates. His arrival also meant Joe Delaney's exit, after Gina had to choose between her two exes in a cruel twist.
Perhaps this bonus scene explains why Naomi and Alex were spotted snogging in London last week? The pictures were taken as they left a restaurant with co-stars Chet Johnson and Helen Briggs. Though Naomi did tweet afterwards to say she is single.
Watch their hook up below (warning: scenes of a sexual nature):