Daughter, we need to talk about what you saw yesterday. You've seen my dick often enough before when I'm peeing in the woods while gathering berries. But it was very naughty of you to watch me through the keyhole in the bathroom as I had an erection and... well, of course I need to masturbate regularly since your mum is gone - as we discussed yesterday, it's perfectly natural. However, I must teach you that you should not spy on anyone without their permission. So you agree and want to be punished as a reminder? Spanked?
Very well. Let me sit down on this chair, good. Come to my right side and bend over my knees. Wait, what are you doing? I didn't tell you to take off your pants and knickers! Neither of us is supposed to enjoy this, you naughty girl! But as you are in position I will put my hand on your naked bottom to prepare you for where the slaps will land, right on your lovely bum cheeks, no higher or lower. Are you ready? Yes?
Whack! "Ow!" you cry as the flat of my hand slaps your buttocks. Now stop squirming around, it's hard to hit a moving target. You want me to spank you harder? Then keep still, it's for your own good.
Whack! You cry out louder and begin to squirm again, but I notice from the way you do it against my thigh, that it is not just from pain...
Whack! Halfway to your "S i x of the best," your bottom is getting very red now.
Whack! Not content with the squirming alone, you reach down with your hand between your legs...
Whack! You're rubbing your clit now and clenching your buttocks tightly before the final...
Whack! Your punishment is complete, I kiss your forehead and say I'm sorry I had to do that. You say you wanted it that way, you've learned your lesson and you won't spy on anyone again without their permission.
Then you immediately ask for my permission! You felt my cock swelling as I was spanking your bare bum, and now that you are rubbing your pussy provocatively in front of me, you see the bulge in my trousers getting bigger and bigger. You say:
"Daddy, to tell you the truth, I couldn't see very well through the keyhole anyway. Please, please let me watch you masturbating and cumming, I am all yours!"
Daughter! I'm not sure I'm ready for that. Well, physically yes, of course, I know you can see how my hard-on is straining to burst out of my trousers. Nevertheless, you're my daughter! But OK, you're over eighteen and it's obvious how much you want it. One condition though: definitely no touching each other, we stay at arm's length at least, agreed? Spanking you was not meant sexually, although it clearly turned us both on, so we're not going to do that again. We'll go into the bathroom and you can watch, and I have to admit that I'll watch you too, but if you try to touch me I'll throw you out, lock the door and finish myself off alone, understood?