i have a similar view to those already expressed. i certainly wouldn't expect someone who i do not now, or know very little to grope, fondle or play in any other way.
Online however, there is light hearted play i would indulge in with those i know well, and have done for some time. I do however, draw a distinction between Doms and subs. When in a relationship i would not play in any way with another Dom - same online and in real life. i may joke and laugh with them but i do draw lines. i will however, hug a close friend who may be Dom, and as i am tactile in real life, and would do this in real life, i also do online.
So i guess i am saying i behave much the same in both situations.