twatoo
I hope this isn't too complicated, but it is a form of bodily adornment located above the lions and below the navel - a cheeky location - related to a psychiatric disorder, namely Vagina Dentata.
I have an illustrative example but this box won't accept (a PNG) it! If you want the photo respond with instructions.
She bent over and exposed her little friend adorned with a twatoo.
She bent over and exposed her little friend adorned with a twatoo.