Bout two weeks ago, my mom and sister left to go spend a weekend at the casino, leaving me home alone. I've masturbated with my mother's panties before, even done it in her bed, but it's been years since I did anything of the sort. Horniness lead me to her bathroom and into her Laundry hamper where I grabbed a soft red pair of panties, and without hesitation I wrapped them around my cock and started bucking my hips like a madman. Nearly came right there, but didn't want to spurt in her bathroom. So I went back to my room, cock still in underwear and primed to burst. I savored every stroke and hump untill I came so hard my head was spinning. The softness of the underwear combined with the idea of weirdly being close to my mother's hole made me orgasm harder than I have in years. Had to wash the evidence after. Washed her clothes and made it seem like a favor for her to hide my shame.