5 months is like a tipping point / threshold, once you hit 6 months it starts getting easier as you get used to it and pay less attention to the lack of sexxors.
forget the note, towards the end of class just lean over him, place your hand flat against his crotch, and wink at him. Then finger motion him out the door to follow you...
hahaha
Take a vacation to Philly, ill "show you around"