I know I've seen text messages on her phone from him that say "wanna meet somewhere and make out?", I know they've had phone sex, and I know they've spent one hour+ in the car, parked, on several occasions, and there are also other blocks of time unaccounted for and HUNDREDS, if not thousands, of text messages.
She was also Googling "sexual positions" and "how to please a man sexually", and this was a month ago, and things have heated up since then, so I think we can all do the math.
Whether they've gone all the way or not or just had some combination of flirting, oral sex and phone sex, it's still a heavy emotional affair (complete with "I love you's") with a STRONG physical component, continuing in the face of total confrontation and exposure from all circles.
