Richards, 20, and his best friend Danny Ball, 21, became household names by performing their martial art act Strike on the ITV1 talent show last year.
Ex-Hollyoaks actress Atkinson apparently went public with her new romance at Glasgow Airport yesterday.
An onlooker told the Daily Star: "They couldn't keep their hands off each other and they didn't care who saw. It is great to see her looking so happy."
Atkinson expressed a desire for "a bit of rough and tumble" after announcing that she was single in February.