Amanda, 46, made the saucy move while speaking to Harry Hill about his new children’s book Matt Millz, where a schoolboy takes part in a talent competition called The T Factor.
The judging panel for the T Factor had some very familiar names which Ben, 42, read out to the comedian: “David Walnuts and Amanda Thrustup.”
As soon as Ben had mentioned the fictional talent contest judge, Amanda grasped her assets and pushed them up.
“And where did you get the inspiration for that?” Ben quipped as Harry, 53, attempted to keep a straight face after Amanda’s naughty gesture.
“Yeah, where did you get the inspiration for that, Harry?” Amanda added and gave him a pointed look.
Harry cheekily replied: “It just came to me in a dream?”
But Ben took things one step further as he asked: “Have you been dreaming of them as well?”
All three of them burst into laughter as the question was left hanging in the air and they tried to continue with the interview.
The moment comes as intruders stormed into the This Morning studio and left Amanda terrified and clinging to Ben for dear life.
Luckily, it was only two people dressed up as zombies to celebrate The Walking Dead season eight premiere and Stranger Things season two hitting screens this week.
The hosting duo were left stunned and struggled to carry on with the show as one zombie burst in through the door and another jumped out from behind the This Morning sofa.