The TV host posted in the comments of a snap of the Britain’s Got Talent star in black underwear.
Paddy, 49, wrote simply: “Bloody hell! 🙏”
Several fans remarked on his comment, with one telling him: “Calm down Paddy 😂.”
Another borrowed his old catchphrase from ITV’s Take Me Out, writing: “‘Me likey, me lighty.”
Amanda, 51, was promoting a line of special lingerie ahead of Valentine’s Day in a promo for JD Williams.
One shot shows her sprawled over a chaise lounge with a bed arranged behind her.
Another sees the Heart Radio host leaning over a sink while looking over her shoulder and smiling.
Paddy wasn’t the only star to show their appreciation, with Louise Redknapp writing: “Bloody amazing , love it ❤️.”
Strictly’s Tess Daly added: “SMOKIN babe 🔥🔥” while This Morning’s Lisa Snowdon said: “Wowzers honey!”