Feint of Heart: Taken Down by a Weakling

Story :  One day, my older brother came home with a young coworker, and I'd never seen someone so innocently, earnestly, uselessly in love as this guy was. What does he mean, just looking is enough for him? Getting off is obviously the better option here. His attitude was a novelty to me, as a notorious slut (and card-carrying bottom to boot). So at first it was out of curiosity, plain and simple, that I laid hands on him without a second thought (figured I'd let him show me the sexual side he can't show to the one he so virtuously loves). That was the idea, at least...