The Invitation Your One and Only Chance (Mantis World) chapter 4 by Toms Tiny Emporium

Curious about your online friend's message, you click on it. 

"How's the birthday boy doing? Knowing you, you jerked off all night and passed out, hehe. You know, if you asked nicely, I would've sent you a foot or boob pic, but that ship has sailed now ;P. Now that you're legal, wanna hang out? I wont shrink you, unless you ask for it. If you get yourself killed before reading this, Ill find your ghost and stuff it in my shoes!!!"

Katie is a girl that's your age and lives in the next town over. You two have been online friends for a few years now, but have never met in real life. She's always been a little flirty, but now is much more direct. You could message her back or reconsider your options.