She made no move to take her hand away, and I didn’t do anything to discourage her as I started to enjoy the feeling of her hand caressing me.
After a few moments, she slowly opened her eyes, withdrew her hand and said “Well, that’s enough for now, don’t you think Alex? We’d better hurry.”
I could see she was quite flushed, and looked away as I stepped out of the wet underpants. She handed me the knickers and I put them on, pulling them up over my semi-hard member.
“Very nice fit,” she whispered, and her hand came forward and ran along the inside of the elasticised knicker leg. I could feel the elastic tight round my legs, which was most peculiar, but rather nice all the same. She took her hand away and was all business now, as I put on the clean trousers and, still buttoning those up, hurried down the stairs.