My stepsister Demi and I share the same boyfriend because why fight over him when we can both have him? Then we catch him on a dating app hunting for a third girl, and that’s not happening. If he wants a girl who’ll do anything for him, we’ll give him two. We climb into his lap and make out right in front of him, tits out, nipples in each other’s mouths, and I rip open Demi’s tights to finger her until she’s shaking. He still takes the call from his new match, so we drop to our knees and let her hear exactly how we take care of him, licking his balls and sucking him sloppy until he’s gripping our hair and fucking our throats, just how we like it. Demi grabs the phone long enough to tell her he’s busy, then we take turns riding him while we kiss, lick, and rub each other through every position. When he paints both our faces, we lick it off each other and kiss it right back. Sorry, babe, this throuple is full.