You can do this

You debate making your way to the button by the bed and calling Aunt Lydia to help - she could lick you again, that would make you "cum" very quickly - but decide against it. You'll need to be independent eventually, and she did show you where to touch yourself and how, right?

Your knees are starting to shake from the flushes, and with your left hand still on the doorknob you sink down to your knees. Almost subconsciously your other hand moves to your breasts, tugging your nipples through the fabric of your dress and your bra. It doesn't feel as good as it did naked, but you can still feel little electric sparks all the way down to where the heat is pooling.

You tighten your grip on the doorknob for what feels like support and lean your head against it as you move your right hand lower, lifting the edges of your dress as your legs open wider of their own accord. Aunt Lydia had you touch your stomach, but you know where your fingers need to go...

Without wasting time, your fingers slip inside your panties and you hear yourself moan when they brush your clit. It feels so good, how did you not do this sooner? Why would you ever resist? You dip two fingers low, like Aunt Lydia showed you, and find the wetness leaking out of you. Your fingers glide easily as you bring them back up to your clit, wasting no time rubbing it in tight little circles, faster and faster as you chase the heat pooling low in your belly.

You can hear yourself moan something indecent, and you spare a moment to think about what this would look like if someone tried the door now - you'd come tumbling into the corridor, hand inside your panties, rubbing furiously deep in the folds of your pussy and moaning like a whore...

It's that thought that pushes you over the edge into what you now is an orgasm, as your pussy clenches and the pleasure courses through you like a shockwave.

You kneel at the door for a minute, panting, feeling yourself clench a few more times as your body comes down from the high. You're blissed out and would happily take more time but... dinner!

You realise you're going to be late as you quickly get up, your legs a little shaky. You don't have time to change or fix your face - you must be flushed, you can feel it - so you quickly wash your hands and head out to find the dining room.