If someone just got out of a relationship. How long is appropriate to wait before tryna pipe?

What are y’all standards?

If your mans brought a girl to the crib with “intentions” but once she get there she’s obviously throwing you energy and is dubbing your mans..

How do you approach the situation?
(Keep in mind this is not his girl, a first time tinder meet up for instance)

Your home girl (you’ve been crushing on for a min, like she might be the one, you’ve been waiting for this girl your whole life type)

Says you can finally hit but she wants a 3 some w/ your best friend.

This May be your only chance to hit. What y’all doing?

Your homie passed 8yrs ago you run into his fine ass single mama. Y’all get some coffee and chat about your new career. she has some old things of his she wants to give you and invites to her spot,
she throwing crazy energy and makes the first move.

How do you act?