Authors Note: Last one, let's make that promise.
As Mark continued hiding, the twitch in his newly formed satyr penis was beginning to increase. The costume Mark had on was starting to cause him to lose all of his memories, and begin to lose track of what he was doing. Mark couldn't even speak English anymore due to how horny he was, as he decided to dart out the door, and leave.
Just then, Mark noticed a bunch of women come to the party at last, when he decided to have a little fun before he left. What Mark didn't know is that there was a tag on his costume that fell off during the transformation that explains everything. "Warning," the tag explains. "Side effects of this costume include, fusing with the costume, loss of memory, massive hornyness, and contagious transformation spread if anal, or vaginal is involved."