Hm. Hetero intercourse, no. I can’t think of that being comfortable, since I’ve always been a bigger woman. Fooling around otherwise - sure. Hands stuff only, with both sexes. Men are easier for obvious reasons. With women, I’ve found it easier if she reclines in the passenger seat and moves the seat as far back as possible - I can recall many times in my 20’s getting some girlfriends at the time off while driving down the Turnpike. In my 30’s, not so much - I have lost confidence in my coordination to manage that (and probably some of that invincible feeling of youth).