I believe that monogamy (sexual monogamy, NOT emotional monogamy) is a concept that most men will be miserable with, leading them to feel trapped in the relationship. For this reason, I plan to have a conversation with my LTR telling him it's totally fine with me if he has sex with other women (knowing him, he would not refuse). I do want to set some boundaries about this, but I also want to remain submissive. However (correct me if I am wrong), I believe that since submission is different than being a doormat, setting boundaries does not immediately equal the lack of submission, especially if the boundaries are not arbitrary or unreasonable. The "ground rules" that I want to discuss with him are as follows:

1- Always use protection

2- STD tests every once in a while (a month or two)

3- If he gets someone pregnant, I have absolutely no responsibility towards that child.

My main concern is about #3: on one hand, if I was not engaged in the act of creating that child, why should I have any responsibility towards it? On the other hand, I do not want to communicate that I won't be supportive of him in tough times. But then again, I will be informing him so it would not be a surprise if/when he gets someone pregnant. But on the other hand, say it actually happened: Am I being a jerk if I refuse to care for a child that's not mine? I do want to defend my rights in the relationship while also remaining submissive. Say it happened: he got someone pregnant. And it is defiantly a tough situation to be in for him as well. Doesn't my "I have no responsibility towards this kid" come off as unsupportive, uncooperative, and kinda jerkish when/if that situation actually occurred?

Do you think my boundaries, especially #3, are reasonable? Constructive criticism is also welcome!