Prince William and Kate Middleton recently showed some public display of affection.

The Duke and Duchess of Cambridge are very modest when it comes to showing PDA compared to Prince Harry and Meghan Markle. However, Prince William and Middleton weren't immune to the romance at Princess Eugenie's royal wedding and were not able to hide their fondness for each other.

Prince William and Middleton were photographed holding hands during the wedding ceremony. Middleton's hand was on the duke's lap and he held it. Another shot featured Prince William touching Middleton's back.

"It's normally touch and PDA -free body language rituals from William and Kate but they managed to outdo Harry and Meghan here as Kate reached across to place a hand on the arm of her husbands chair and he put his own hand over it in a very romantic gesture," James wrote.

"Their smiles together have changed and their affection and love signals are much more intense and open than ever before suggesting the birth of their third child has somehow thrown them back into the honeymoon stage of their relationship."

Prior to the event, according to James, the Duke and Duchess of Cambridge have become more tactile following Prince Louis' birth. Thus, their sweetness during Princess Eugenie and Jack Brooksbank's royal wedding wasn't so surprising.

According to the expert, before Prince William and Middleton are happy and loving but not in a tactile way. So, the couple being touchy in public could be a sign that they are delighted of parenthood or it's an influence from the Duke and Duchess of Sussex.

Prince William and Middleton were seen together in their joint engagement on Tuesday after the duchess' six-month maternity leave. They joined forces to attend the first Global Ministerial Mental Health Summit in London.

On the said sighting, the Duke and Duchess of Cambridge agreed to recycle the outfit they both wore during their official visit to Germany. Middleton recycled her purple A-line dress by British designer Emilia Wickstead. On the other hand, Prince William donned the same combination of suits and tie.

Middleton stepped out again on Wednesday for her solo visit to the Victoria and Alber Museum to tour its new photography center. Middleton wowed in a new off-the-shoulder fitted tweed dress by Erdem. The wardrobe was inspired by the Queen's outfit when she met the late American jazz pianist Duke Ellington.

Prince William and Kate Middleton Prince William and Kate Middleton caught showing rare public display of affection at Princess Eugenie's royal wedding. Pictured: Prince William and Middleton leave after attending the wedding of Britain's Princess Eugenie of York to Jack Brooksbank at St George's Chapel, Windsor Castle, in Windsor, on Oct. 12, 2018. Photo: Getty Images/Alastair Grant