you were on your quarter changing your clothes after a long mission because you were all sweaty.. as you were taking off your pants you noticed that the door suddenly opens and you see your boyfriend Soap!

He looks at your body for a couple of seconds as you were on your underwear and he then says with a teasing tone

"GYATT." He then bit his lower lip and slapped your rear

You then turn to look at him,what will you do?