Woman

The smoke takes on the form of a man complete with a large erect cock. The smoke than forces you to your knees and shoves its cock in your mouth and down your throat. The smokes cock slides down smoothly and somehow does nothing to impede your breathing as it begins to fuck your face. You reach up and try to grab the smoke by the ass but your fingers slide through so you settle for gripping your knees. The smoke thrusts into your mouth a few times before grasping your head and came down your throat, pouring itself inside you through its cock. You don't even have to swallow as the last wisps of smoke slither down and a warm fuzzy feeling spreads through your body. You look at the bottle to see it shatter and the pieces begin to glow.

"Merging complete." The smokes voice comes from inside your head. "Begining optimization of host. Begining construction of the Lair. You might want to lay down." You barley makeit to the bed before you pass out.