OK, let us start by saying that these may not actually be easy, but neither is having an affair and all of the residual problems that follow which can lead to a break up that neither party truly wants. So now that we have been honest with you, we think you can tackle number one.
1. Be honest.
The best way to avoid an affair is to be honest about your desires up front as soon as they arise or once you have overcome your sense of shame for having them. For this to work best, you and your partner must create an ethic of acceptance around each other's desires, even those that are scary or threatening. Some people are afraid to even share their sexual desires or talk about the possibility of being with someone else because they fear that their partner will judge them, stop loving them, resent them or begin watching their every move to make sure that they are not seeing anyone else.
2. Negotiate your relationship contract.
Evaluate your relationship contract frequently and look at the boundaries you have set in your relationship or your resistance to certain sexual desires and practices. See if there has been any movement in those boundaries or if you are willing to explore the possibility of shifting them. If you do decide to expand your boundaries, it is important to do so slowly and with lots of communication. It is also important to remember that trying something out to see if it is okay with you does not mean agreeing to it forever. When working with couples on shifting boundaries, we always emphasize how important it is that people not go beyond their boundaries and shift into resentment.
3. Make room for disappointment.
Make room for each other's disappointment when yours or their needs are not being met. Often, if you are merely allowed to openly and shamelessly ask for what you want and receive the support of your partner in having those desires, that can be enough. Then, even if it is beyond your partner's capacity to allow you to meet those desires out in the world, they at least understand that you are disappointed, and you can feel loved and accepted by them.
4. Turn a threat into an opportunity.
You might also see if there is any part of your partner's desires that you can play with or explore through fantasy and role play. If your partner wants to have sex with other people, you might dress up, pretend you are someone else, and have them pick you up for a night of sex. You might have a secret affair with your partner, complete with afternoon rendezvous, or you might go out cruising together and check out whom you'd each like to pick up. If your partner desires threesomes or group sex, you might come up with a hot threesome or group-sex fantasy to whisper in their ear during sex.
For some people, just having their desires heard and accepted will be enough. Others might not be satisfied with this solution, and their partners will need to listen to their disappointment or discuss outsourcing. The longer desires go unspoken and unheard, the stronger they are when they come out, so early acceptance is important.