The nation's "younger siblings", IU and Yoo Seung Ho recently reunited for a G by GUESS photoshoot.

The two looked like a trending couple in matching tees and jeans, but it seems as though Yoo Seung Ho may have a small crush on the singer off camera.

Yoo Seung Ho recently participated in a 'Ideal Woman World Cup', where he had to choose between some of today's top female celebrities such as Kang Sora, After School's UEE, Girls' Generation's Seohyun, IU, and more.

The other girls seem to serve as no competition for IU, as Yoo Seung Ho bashfully but consistently chose IU over everyone with little hesitation. He even further confirmed his feelings by admitting that he prefers girls of the same age (IU) over older, and even younger women.

If you can recall, IU called Yoo Seung Ho her ideal man as well a little over a year ago on SBS's 'One Night TV Entertainment'.

It seems like a lot of girls will be jealous including KARA's Nicole. Check out the clip below!