In this kinky special, Anfist18's dolls push boundaries with intense anal play. One doll starts by licking the other's asshole, spreading her cheeks wide, then slides a finger in, making her partner gasp. She adds more fingers, stretching the hole, before plunging her whole fist in, causing the doll to squirm and moan. They switch roles, the first doll enjoying the sensation of being fully filled. The fisting continues, intense and taboo, culminating in a synchronized fart as they both withdraw their fists, leaving their assholes gaping and satisfied.