Astarion remained still, draped over Thrawn- eyes closed and looking for all intents and purposes like a man dozing off. He waited- waited until he was certain the other man had fallen asleep, before carefully slipping out of his grip. All that time playing the rake, he had gotten just as good at disentangling himself from the grip of a sleeping lover as he was at certain other things.

And when it came to moving about silently he was an expert. He found a towel to wipe between his legs, before slipping his clothes on and fetching the wrapped goblet to stuff into the front of his coat jacket- his movement across the floorboards was silent as the grave too, as he found a note and scribbled down a thank you for the pleasant time message to put on top of Thrawn's clothes to be sure the other man would find it.

There was the opportunity to steal of course and the thought of doing so did give him pause... But aside from recognizing the man's outfit as some sort of uniform meaning that he likely owned valuables, he wasn't entirely sure if he could narrow down what was and wasn't of actual interest if he went rifling through pockets, given how alien the clothes themselves were- aside from the cloak.

Knowing his guards were right outside the door, he opted instead for the window after leaving his note- carefully sliding it up and open before getting up on the windowsill and swinging his legs over to the other side, climbing out onto the roof- carefully sliding down along it and lowering himself down along the gutter until he was down on the street.

Given that darkness had fallen outside, and plenty of drunk, sexed up Baldurians were already shambling through the streets it was no issue at all to blend in with the crowd as he set course for a proper bathhouse. He really felt the need to clean himself up before rejoining his companions.