On the matter of consent.

Consent. 

That one word that gets everyone into some kind of mental red light and taken either to mock or to avoid or to treat with respect. For some it's a good topic while for others it is a horrible reminder of things that shouldn't have happened. 

Consent is a fragile thing that always needs to be revisited. From time to time. 

In every relationship there is a base of rules where "no" means no and "no" is a complete sentence where you don't need to justify yourself or answer why your answer was no when asked rudely. If it's asked for clarification nicely, that becomes a good thing an a learning experience for the one that doesn't understand. 

Consent is even in romantic relationships and in marriage. No one owes anyone anything. And it's especially important to note that it's no one's "right" to anything of the others body if met with a firm no. It isn't your right to molest someone just because you're together or married. Of the person says no, it's a violation of consent; therefore, you're doing something against someone's will and you know what territory this fringes upon. 

If the person doesn't want sex and the other asks for a hand job because that's not sex and receives a no, that doesn't mean for ahead and guilt that person into giving you one anyhow. The person shouldn't feel guilty or bad for saying no. That's coersion. And definitely not respecting consent. 

Talking, communicating, asking questions, pausing and asking yourself why were they met with a "no" is a much better thing to do then rage and guilt your partner or partners into forced something, anything, and making the experience not enjoyable for half of the party.

That especially comes to terms when talked about D/s relationships since you, the Dom is solely responsible for the submissive's wellbeing and breaking that consent, breaking that trust, breaks all that D/s relationships stand for. There is no trust without consent and trust that your wish is will be upheld.