I'm sorry, I tried to offer some constructive advice earlier in this thread, but, I've seen enough.
Are you out of your !@#$ing mind? WTF did you cup from behind? Not only is that forcing you to contort yourself, you are also susceptible to a sharting accident. Cup from the front, man, FROM THE FRONT. Stop making things harder than they need to be.
Now, grow a pair and sit like a man when you pee.