Roll After Dark

Foreplay, oral attention

Unhurried touch, oral attention, or closeness without an orgasm attached.

Why people do it
Slow attention with nothing promised at the end of it turns out to be one of the hardest things to sit through, and one of the most effective ways to hand somebody over before a scene starts.
Smallest way in
Twenty minutes of unhurried touch with an explicit rule that it does not go anywhere tonight.
What to watch
If an orgasm is off the table, say so at the start rather than at the end. Being stopped is a scene; being quietly disappointed is not.
In the planner
12 different things carry this tag, and switching it off removes every one of them. The mildest of them sits at easy.