A sexually charged embrace, you mean?

Sorrow is its own intoxicant.

yes... or no... kinda... maybe... er... what was the question again?

It all depends on how you would feel about it the day after. Good yes, regret no.

If you're talking a sexual encounter, then this:
If you're both feeling alone, severely depressed or discouraged, or are dealing with strong emotions from a tragedy, that sort of thing... and you hold each other for comfort... and the embrace is held longer and longer... or it progresses to kisses etc. Then you both can sense the passion starting to build.
Let's face it, you both know what this is, it's a longing for comfort, security, feeling needed and worthwhile and loved amidst an external opposite environment. I'd say, pause for a moment and ask each other or confirm with each other the expectations and promise right then and there: "No victims." Meaning, this act cannot be used by either party to imply anything other than simply what it is.
If you're both okay with that, then I believe there is nothing wrong with having each other.