They had expert Sarah Jossel on the show to show off the latest beauty products that viewers can try out at home during the latest lockdown.
But Holly was left stunned as Sarah showed her a vulva-friendly bubble bath, which protects the vagina for women who bathe a lot.
Holly was left stunned as she burst into giggles, saying: "Well there you go.
"If it's not vulva-friendly, I don't want to know," as she and Phillip kept laughing with each other.
The pair later burst into giggles at the end of the segment as Sarah said she had been watching Joe Wicks and his new PE sessions, which are returning for the lockdown.
Phillip joked: "That's also vulva-friendly," as Holly couldn't contain her laughter.
Meanwhile, Holly left a caller emotional as she offered to help them with their home-schooling now that schools have closed again.
A mum rang in to tell them about her woes, saying she was having to write out lessons for her kids as her printer had stopped working.
Holly made a sweet offer to the mum, named June, as she revealed she had a spare printer and would send to her to help her out.
She said: "I've to a spare printer at home! I'm going to bring it in tomorrow," as she promised the mum the ITV team would send it to her.
June sounded very emotional as she gushed: "Aw, thank you so much Holly."
Fans took to social media to commend Holly for her kind gesture, as one wrote: "Holly offering her old printer to a single mom struggling to home school her 3 kids has pulled on my heart strings."
This Morning continues tomorrow at 10am on ITV.