I have to ejaculate inside the woman, if I cant get hard enough for a shag, I refuse the offer of a bj or a wank. For me its all about endorphin release and this only really works if you have a shag, with a beginning middle and an end. There is scientific support for this view, and I actually punt for the good of my health. This is why the majority of my many punts are with the same three girls. If I had a partner, I might punt just for fanny licking etc, so understand guys who are in a relationship going to wgs for something new.