D&D: Stay silent and watch.
From Create Your Own Story
The boy continues to watch the nude lutenist, unknowing of your presence or that fact that he too is being observed. A wicked smirk crosses your features as you continue to observe your unwitting targets. The street performer continues to try on a variety of costumes, each highlighting her voluptuous attributes more than the last. Her shapely breasts barely fit into any of the increasingly restricting clothing, bouncing and wiggling with every fitting.
Your breathing slows, watching the buxom try on tiny tops has turned you on. Your tiny pink nipples turning into rock hard pebbles from the the sensual show the lutenist is putting on for you and your pussy begins to moisten. One hand slowly lowers down your legs, massaging your curvy thighs till they reach your pussy while the other reaches up and pinches your tits.
Sleek digits smoothly push in and out your folds, wet from your juice and you have to struggle to remain quite. Both your ample breasts and nipples receive generous attention from your hand, kneading your busts and teasing your teats. Your ministrations continue ceaselessly until finally you climax. You cry out, your body convulsing with pleasure and a small pile of your pussy juice forming between your legs.
The boy ducks down from surprise and looks around wildly for you, hiding away once the woman comes out frantically dressed with half buttoned shirt and loosely fit pants. She looks around, blushing from the realization that she's been seen naked. Thankfully your spell of invisibility thankfully shields you from her sight but there's a chance that she might still find you.