Neighbours knickers

A few months ago my neighbour knocked on the door asking if I could do some washing for her as her machine had broken. I said yes and didn't think anything of it. She handed me a big bag and I said I'd do it now and be finished by the end of the day.
As I was sorting it is found 3 or 4 pairs of her knickers, they were very sexy. I couldn't help myself and had a sniff, I got hard straight away.
You see just the night before I had heard her snagging and wished I was there watching, the smell of her knickers made me think of going down on her and made me so horny.
I grabbed them ran upstairs lead on the bed and got my cock out. 3 pairs now on my face to smell and taste and 1 round my I cock I began to wank.
In just minutes in was cumming hard.
She had no idea when I head back the clothes, she even ask if I could do another load next week if the machine wasn't fixed. Of course I said yes, and did it all over again.
Just a shame she's had to move away.