The sexual side. Yes.
For those fortunate few of us where diapers present as a sexual turn-on, there will be many ways to deal with it.
My personal reaction is similar to messydiaper and woolybobs. Giving in to the sexual side would generally kill off the desire to wear. Sometimes that is fine. Since no one in my house participates, I have to find the time when I can to indulge. That might only be a couple of hours or less every few weeks. Wearing, having a good time and quenching the desire for a while is sometimes my only option.
When I have an opportunity to wear for longer periods of time, I have had to employ drastic measures to prevent an early release. One word. Discipline.
I make a game of it. It is nothing new to the BDSM crowd, but I deny myself the option to orgasm. In my DL headspace, I have trained myself to hold off as long as I possibly can. If you want something even more exciting than orgasm, try edging. Bring yourself close, then deny yourself a grand finish. Yes, all of this would be better if I was participating with someone else, but that is not an option for me. So into my head I go.
I am not always successful with the discipline part, so I have a technique to help me along the way.
Since my behavior has to be hidden, I try and trap myself into a situation where if I orgasm, I won't be able to change for a while. No changing options are easily available and I am forced to wear the soiled diaper. The best is climbing in to bed. If my desires overtake my ability to resist, I have to sleep in my diaper until morning. It's easier because after a nice climax, I am usually sleepy. When I wake up in the morning, my urge to purge has subsided. I am usually very happy I didn't take off the diaper. The bonus is that that first orgasm 'takes the edge off' and I can concentrate on being the big baby I am.
None of this is easy. The rewarding stuff usually isn't. I find that the more I take control of my urges, the better I feel about AB/DL. I used to think I didn't want to have these feelings. Now, after a long time honestly, I am able to take control and just accept.
My $0.02