Daughter's Surprise

I have two daughters, one 14 and one 19 yrs old. My eldest went through the usual rebellious phase, stayed out late, made what I thought were bad friendships, all the usual stuff. Then despite all this she got first class exam results and went off to a place at one of our best universities-she's in her second year.

The younger girl however seemed to be the complete opposite, polite, helpful, if anything a bit dull but loveable nonetheless. A few weeks ago she stayed over at a friend's house for the weekend and I thought I'd take the opportunity to tidy and vacuum her bedroom. As I was running the vacuum under her bed it clinked on something metallic. I bent down, reached under the bed and found a body spray aerosol, the slim type to go in a handbag. Thinking nothing of it I took the cap off and held it up to my nose to see what the scent was. At first I couldn't quite work out what I could smell until I suddenly realised that it was, unmistakably, cunt!

It then took me some seconds to work out why, despite the obvious conclusion that my innocent 14 yr old daughter had been using it to masturbate. That's not how the realisation flashed into my mind because I can remember sitting down on her bed thinking 'My God, she uses this to fuck herself with, she's been sticking this up herself, does she come when she does it, or does she have to rub her clit at the same time?' and so on.

Next thing I knew I was lying back on the bed with my jeans round my ankles, pushing the aerosol slowly in and out of my vagina. I imagined it felt a little crusty from my daughter's dried juices and came on the spot. I've felt a nagging guilt about this ever since but I've also had some of the best wanks of my life imagining scenes where I walk in on her while she's doing it, or manage to watch her at it when she doesn't know I'm there. I wonder how common it is for parents to find discovering evidence of their childrens' sexual activities exciting?