My sister is 25, 2 years older than me. She's got a big, round ass and has been a cocktease with me for the past 10 years. She knows I fantasize about her but the sexual tenson between us is never spoken. Over time she's let me get away with some stuff but really minimal and not at all worth mentioning. At some point I started jacking off thinking of her. Jacking off on pictures of her, on her panties and watching her sleep. I tried to fuck her once but she rejected me all angry and awkward. Anyway two nights ago after she passed out / fell asleep (or pretended to) I jacked off in her face. I came hard and fast and a lot. Shooting clear, wet cum on her forehead, in her hair and at her eyes. She didn't know what hit her. She flinched and cringed in shock and disgust, turning away and waving her hands up in defense. But I didn't let up. Afterward her face was a twisted grimace of disgust and anger. She looked as if she wanted to cry and scream at the same time. She yelled and called me names, swung at me and threw things. I'm left with a visual that probably more than anything sickens me. I tried to make it right but she wants nothing to do with me. "Hope u enjoyed urself pervert. I don't ever want to see u or even speak to u again. U will never even get to look at me again now. Hope it was worth it u fuckin jerk." That's all she said to me, by text. Some fantasies are better left as just that. I crossed the line.