Technique used if a girl lets you finger her in the ass, but won't let you have anal sex with her. Most effective when you can tell that she is curious to try it and turned on by her own naughty thoughts, but scared that it will hurt. Sneaking it in occurs after you have successfully put one, then two fingers in her ass. This is when you quickly make the switch, pulling the two fingers out of her ass and sneaking your cock in there instead without her noticing the switch until its too late. This is when she will most likely just accept that she has a cock in her ass and just keep taking it.
Last night I ended up sneaking it in on this chick, and she took it like a champ after the instant realization that she was no longer an anal virgin.
by Quagmire_G December 12, 2009
Can you define these popular missing words?