Jennifer Aniston looked in high spirits on the Golden Globes red carpet last night, and keen to show her appreciation for fellow actress Kate Hudson's outfit – with a grab of her bum.

Wearing a navel-grazing, second skin white Versace gown, Kate really did look quite delectable – so we totally understand why Jennifer couldn't help but cop a feel.

Caught on E!'s red carpet camera, Jen was heard saying 'Look at this. Irresistible', whilst giving Kate's derriere a gentle spank.

The actress, who was up for a award for her career-defining role as the grief-stricken mother in Cake (but lost out to Julianne Moore), didn't look too bad herself in a Saint Laurent number with super-sexy hip-high split.

Taking to the red carpet with fiance Justin Theroux, Jennifer presented the Best Supporting Actor in a Motion Picture award, alongside Benedict Cumberbatch, to Whiplash star JK Simmons.

Speaking about her Golden Globe nomination – the first Jen had received since 2003 – she said: 'Let me tell you, I've been doing it as long as I've been doing it [and] I feel still so excited that there can be exciting new discoveries,' she said. 'It humbles me that I have such support.'

See the list of Golden Globe 2015 winners

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See all the pictures from last night's awards