Why is Suzaku grabbing her? Or is it that homo Brittian with the blue hair? Baaad people.

Watch the show. Suzaku and Kallen are stranded together on an island. She, seeing him in Britannian uniform, tries to jump him with a knife, but since he has military training he wrestles her to the ground. She happened to have been bathing when they encountered each other.

apparently she has water balloons for boobs...
nice animation though

This is from the dvd.

and thus there was win. And there was much rejoicing.