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Christmas is a time for family, which is why Alex Bermingham, from Cork in Ireland, decided to help her grandmother decorate her Christmas tree a few days ago.

But she was soon crying with laughter when she realised her Gran's hilarious mistake.

The 74-year-old had bought lovely, clear plastic baubles with glittery purple insides - so far, so normal.

Alex grew confused, however, when she realised the baubles she was hanging on the tree weren't all they seemed.

Upon closer inspection, she noticed they were actually festively-packaged G-strings.

Alex posted photos of the 'decs' to Twitter, saying: "My 74-year-old grandmother bought Christmas baubles in Dunnes Stores, which I have just realised upon decorating her tree that unbeknownst to her upon purchase, they are in fact, lavender glitter G-strings."

When she told her grandmother about her mistake, her reaction was even funnier.

Alex said: "She relied (sic) with "Jesus Al yer man in the shop must have thought I was very kinky sure I bought six of them". Crying.

"Wishing everyone a kinky Christmas this holiday season."

Her revelation prompted other people to reveal funny stories about their own grandmothers.

Alan Ball said: "My son was in the Grannies (sic) one day and just happened to mention his lips were chapped and a little painful..

"Grannie gave him some cream for his lips.. cherry lube..

"Grannies are amazing people..all of them. Cherish her..she seems priceless!!!

Another added: "That’s amazing! Made me think of the time my nan was watching 100% sex on channel five and asked me what a blow job was. Told her it was a wash and dry at the hairdressers."

Have you got a great story about your gran? E-mail nicola.oakley@mirror.co.uk and it may feature on Mirror Online.