2 - substitute for handshake
3 - done during foreplay
Jessikka had to remind herself that if it wasn't Ydna, it isn't appropriate to titty twist anyone else while introducing herself and saying hello.
A- a woman whose period is fast approaching
B- a really, really fat dude
Executed by grabbing your foe's nipple and twisting it with all your might. If done successfully, the foe usually ends up crying like a titty-baby.