Guys! What were they doing!?

Okay well. Theres this guy i have on msn who was with his friend and they told me to go on webcam so i did and i pulled up my shirt and they were like "why'd you pull up your shirt?" and then i was like "why not? :S" and then they were like "flash me" and i said "uhmm no thanks.." and then the guy who's msn it was said "sorry that was ___" (his friends name) then i went off and they said to go back on so they could do something, what could they possibly want to do?!