You're boyfriend Minho is in Omegle talking with strangers for a YouTube video and you come in and look. There is a guy on the screen and he looks at you then Minho comments

Minho:"She's my sister"

You sit in Minhos lap and the guy then comments

The guy:"Why us your sister sitting on your lap? Hand her the headphones"

Minho does so and the guy asks questions

The guy:"Is he your brother?" You shake your head "Is he your boyfriend??"