guppy launching

Guppy launching is an act of foreplay that the female participant performs to arose her male counterpart. The act consists of her putting a guppy, beta fish, gold fish, or other similar small fish into her vulva, and applying pressure until said small critter is launched at max vulva-force across the room.

If I had to choose a larger turn on than her guppy launching skills, then I would choose nothing, because her guppy launching skills are THE BIGGEST turn on.