My partner and I have never done anal. But the partner I had before my current partner (lol) did constantly beg and pretty much harass me about anal. I firmly said no, I would never be comfortable with it and he could not let it go. Jokes and all were fine at first, but it turned into an obsession where no matter what we were doing or talking about, anal would come up. He wasn't taking no for an answer and it got to the point to where he would seriously whine to me about it! I mean whine like a 3 year old child does! We weren't meant for each other thankfully, but that was way too much for me. He started giving me the guilt trip about it and that's not very cool.
Anyways, one day I finally was furious and said "I wouldn't even consider it if YOU agreed to be f'd anally!" That fueled the fire. He thought him letting me shove something in his rear would make it to where I'd finally break down, feel guilty and endure. CLEARLY this is somethign that I'm terribly uncomfortable with. It turned into him begging me to put something in his rear. I finally said, "The first thing you put in my hand will go in your a**" He went in the bathroom of our friend's house and brough back a green round, tooth brush holder for travelling. It was big! It was flat at the end too. He bent over and I shoved it just where he wanted and got the heck outta there! Lol. I wasn't about to stick around for more begging. He told the football team and his coach that it was a vaccuum attachment so they called him hoover or something and when I clarified that it was, in fact a tooth brush holder that belonged to our friend, he felt the need to tell the team and coach that! Then they called him Colgate and people STILL call him that and I still have people say "aren't you the girl that put a toothbrush holder in X's a**" Ha Ha. We broke up but remained friends and had some very humorus jokes about it. Once I bought toothpaste and wrote Colgate on his car.
As for me feeling the need to give, no! If it makes me uncomfortable to this extent then I've learned it's best to not do somethign I'm not comfortable with no matter what someoen wants.