It's hard to label them, but my wife has very narrow and rigid boundaries while I have very broad and flexible boundaries. The main one we share together is monogamy in our relationship.

Hmmm...I guess we don't really have too many firm boundaries. He has absolutely no interest in receiving any anal attention. I can not do collars, gags, or choking whatsoever.

We both agree on the pretty standard boundaries like nothing illegal, no permanent marks, nothing without consent, no bodily waste

we haven't been together long enough to even get to boundaries, although it would seem like one would set them up from the outset. we don't see each other every week. we really didn't have time to set any boundaries when we jumped into the sack. it's never come up during sex. I do have 3 primary boundaries: no anal, no cumming in my mouth or on my face, and monogamy. although, monogamy does feel like it's a shared unspoken boundary. yeah, another one would be no pain. nothing sexual has come up that requires setting a boundary, yet. I say that like I expect it to happen. it's just that things have been agreeable so far. and, it's possible that over time, boundary setting will come up over different issues.