Neighbour

Nikki has been your neighbor for as long as you can remember and you've practically been best friends ever since, because of this Nikki even has a key to your house and you to hers
One day you invited a guy to hang out at your house. While you were on the couch getting a little loving, Nikki suddenly walked into your house
"Hello!"
He says innocently without realizing what he had interrupted them in

She is very innocent and funny