One finger challenge – Teasing, edging, and a fingertip ruined orgasm

I love to torment my pet. This time, I try the one finger cum challenge. Needless to say, I succeed in bringing him to orgasm with just the slightest touch. The lack of stimulation drives him crazy as I tease his cock and edge him using just a single finger to bring him to a semi-ruined orgasm. I take a bit of time to just lightly drag my fingertip over his frenulum, which eventually sends him over the edge.