I am considering entering an open relationship. It is an unusual form of Primary/Secondary. I will be the primary partner with a woman I've been friends with for over 5 years, and dating for the last 1.5 of that. We're both young adults (low 20s). Basically how we will have it set up is this: We feel open, trusting, and comfortable enough to delve into sexuality with each other. With the secondaries, it would be limited to kissing, because that is what we are comfortable with without getting jealous. Additionally, we don't want to chance to spread diseases to eachother in regards to acts of sex. (this includes basically anything with nudity and anything done in between the legs) Additionaly, we understand that we work really well as a couple, and will be good in the long run, but we are still young and want to experience the funness of "flings." The flings are dated and left behind on a whim when the relationship leans towards getting serious. It is apparent to us that leading a lifestyle in which you are dating various people off and on over time as nothing more than flings is fun, but can also be a very lonely seeming lifestyle with all the rejecting and being rejected — and so we believe this will be easier with a maintained relationship between us(the primary partners). We will always know that the other person will be looking out to tell us when we're being stupid, and when we're acting out of character. We trust each other, even if we do not always fully trust the secondary partners. There will always be a person to come to with our deep troubles. We support eachother, while the secondary relationships are more like looking for a sugar fix. What do you think of this? Also, we aren't sure whether or not we can really be comfortable with each other sleeping overnight with the secondaries (just sleeping, not sex)... what do you think and how would you feel about that?