I can't stand harnesses so much... that I frankly got one which doesn't require it. Harnesses really make me dysphoric and I had a freetom and I didn't enjoy sex with it so much, that I frankly became a 'bottom' for a fair amount of time. I came across the Fun Factory Share accidentally while checking out a sex store. I got it super recently so I've only done it once, but man, it's the best thing ever! All you have to do is insert the other end inside you, if you're okay with that, of course and you're great to go! I read that it slips out the first few times you use it, so I'm getting the hang of it currently.