Flirting with my little brother after giving giving him viagra

Katie's brother is trying to watch the Olympics, but Katie has her own little agenda. She tries to model her new, sexy dress, but her brother just wants to watch TV. She offers to get him a drink, but slips a Viagra pill into the glass, and continues her flirting. After a while - little brother is experiencing an unwanted growth - in his pants - and Katie is sure to pick up on that!!! She starts to rub him a bit, and little brother is shocked at first, but it feels so damned good, and nobody is watching anyway!! Right? She pulls his shorts down, and starts sucking her brothers cock - stopping to ask him if he likes it. When he answer "YES", game is over! She takes off her bra. She takes off her panties. She straddles her brothers cock and starts riding him! Brother can't help himself at this point. He gets his sister on her knees, and pounds her ass from behind, until he's ready to cum. He gets on his back, and his sister jerks a big load from his cock, right over her hands.... You pretty much KNOW your sister is a whore, when she lifts her hands up, to let YOUR CUM dribble into her mouth!