Sex is a high level responsibility because two people become interdependent for the achievement of that, momentary, mutually agreed, experience goal.
Details are only important between the momentary partners but they are vital to the experience goal. Touch me here. Caress me this way. Stroke it like this. I want to try this. How does this feel? Is this working for you? add yours to infinity!!
I hate games. I wish we would normalize asking for a sexual favor or a sexual experience as we ask what time is it. That way, no would always mean no and sex talk would likely become easier and being at ease would be good for all of us. Take me rightly on this - it could also diminish any driver of inappropriate sexual advances too. On the male side of that issue is the (I can't stick it there, so I'll stick it between your ears) type of epithet and the (I want some of that but I have no confidence that I can so I'll talk about it in your face and do some touching to grab a little piece of what I wish I could have) lean on you type of behavior.
In college, my wife and I would start a sex topic conversation in the cafeteria, attract a dozen or two participants, talk until class, return, rejoin the same conversation, repeat, all the while having a dozen or two revolving participants. Yes. Talk nerdy to me. I like it!!
Source article and video are here