A banana from the kitchen?

She walks over to the kitchen and grabs a banana from off the counter. You knew you bought those things for a reason!

She walks back to you, holding the banana in her hand, gently squeezing it and running her hand along it, as if to jack it off.

"This will do nicely," she says, and reaches down to her pussy. With one hand, she spreads her pussy lips for you to see, and with the other she slowly eases the banana in.

You can tell she enjoys it because she starts moaning sensually and you think you can see some wetness dripping from her pussy.