When Katy Perry presented One Direction with the award for Best Pop Video at the MTV VMA’s last night, she did what any red-blooded female with a pulse would do in the same situation. She went in for a kiss.

Katy planted a smacker on the lips of the band's singletons Harry Styles and Niall Horan, much to the amusement of the crowd - who went wild and possibly also a little insane with jealousy.

Katy Perry and Niall Horan kiss

Niall in particular seems to have enjoyed the smoochy moment, he posted this photo of the kiss on twitter along with the caption: "@katyperry looks like its official ... me and you" [sic]

The cheeky Irish charmer.

Katy was quick to respond, replying with: "I'll be your Mrs.Robinson..." - a reference to cult film The Graduate which sees a 20-year-old guy fall in love with an older woman.

Katy Perry kisses Niall Horan at the MTV VMAs

OO and ERR.

Nialler seemed pleased with the idea, writing: "@katyperry: and here's to u mrs.robinson, I guess I can deal with that." [sic]

WELL, we do love a bit of twitter based flirting.

One Direction have made no secret of the fact that they're big K-Pezza fans, even admitting on their recent MTV 'My First Time' special that they'd love to collaborate with the 'Part of Me' singer.

Katy Perry tells Niall she'll be his Mrs. Robinson after VMA smooch

Well Hazza and Nialler certainly 'collaborated' with Katy last night! Love. It.

What do you think about Katy's 'Mrs. Robinson' comment?

Missed the ceremony? DON'T WORRY the whole thing will be shown in the UK on MTV at 9pm tonight. Hooray!

One Direction tweet VMA thanks

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One Direction win THREE Moon Men at the MTV VMA's 2012

Images: Twitter