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When two people love each other very much and feel comfortable around each other, tummy sex tends to happen. An individual lies down whilst raising his or her t-shirt whilst their partner either topless or also raising there t shirt lies on top of them rubbing rhythmically back and forth. This is tummy sex. The origins of tummy sex are unknown, possibly dating back to the Roman times, though it wasn't observed fully until 2010 when in london zoo the act was carried out shameless in the full view of the public.
Person A: "Come here Mr. Tummy and have tummy sex with me!!"
Person B: "ok, yeah, lets have tummy sex"
by lemons12334 July 05, 2010
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