My step-son is having a pool party. Wearing a sexy bikini I walk in on his friend jerking off in a room. At first embarrassed he confesses he is jerking off while thinking about me. I'm so turned on by this I ask him to continue. I give some extra motivation by slowly removing the bikini and begin touching myself and instructing him to continue. Eventually you I can't resist and I start giving him a handjob until he blows his fat load all over my tits