As they say, there are two rules in improv: Never say no, and never ask why. When another actor asks 'Why?' or says no to something you're suggesting, then it's very clear that they're putting the onus on you, because they're not comfortable with it themselves.
“But his kiss was so sweet, and so closely he pressed, that I languished and pined till I granted the rest.”
“Do not be troubled for a language, cultivate your soul and she will show herself.”