Gagging my bratty little snitch stepsister again!

Step-Mom and step-dad are out of the house and my little step-sister Dot and I are home alone. I've got her taped on a chair while I tell her how annoying I think she is. She's really loud-mouthed and never stops talking even though I thought she already learned her lesson after I hogtied and gagged her with her own dirty socks. But she didn't learn her lesson so this time I decide to give her a taste of big step-sister's worn socks instead of her own! I pull off both socks from my feet while I tell my bratty little step-sister what I'm about to do with them. Ugh, I've worn this pair for so long and it's so not gonna be pleasant for Dot to have them in her mouth but I really don't care, all I care about is how I can keep her quiet and teach her to stop being such an annoying little bitch!