Look, they’re all adults, they’ve all (except Nile) known each other for centuries—Joe and Nicky have absolutely fucked in a safe house with everyone else in the same room, but out of courtesy to their friends, they try not to be obnoxious about it. Furtive fumbling in the dark, hands over mouths to keep quiet, wishing they could do more but happy to be with each other anyway they can, etc.
Joe/Nicky, trying to be quiet during sex in a room with the others