*snerk*

I've never written them having sex. I don't think I ever wrote them as a pairing, actually, except one time where they were cooperating to get Hinata laid (haven't posted it.) In that fic they were best friends who make out at parties, and Sakura could have fallen in love with Ino but didn't let herself because she knew Ino was emotionally straight and couldn't have loved back the same way. (Which is funny because in my headcanon it's the other way around, Sakura who looks toward men for emotional connection and ino who looks at sakura and goes "god please just look at ME".) So they did heavy petting and stuff, and sometimes they did it in nightclubs because drunken semi-exibitionism = yay.

but apart from that, no headcanon, sorry. ^^;