Up her skirt
Your older sister is visiting from college and decides to sit you down for a little chat. She says she's learned a lot since she's been away, particularly about her power over men. You've always had an unhealthy sexual obsession with her, but up until now, you thought she had no idea. Sis confronts your sick little fetish and forces you to begin masturbating in front of her; in the flesh. Knowing your dirty panty sniffing habits, she teases you with peaks up her skirt and eye-fulls of her panty covered pussy. You want so badly to control your urges but you can't help yourself in front of your sister's pure perfection. She counts you down to orgasm then forces you to lick up every drop. Your life is fucked from here on out.