Cass touched herself as she watched her master rut Tess's tight ass, before stopping for a bit as she heard Avery commanded her to do something for them. "Heh, sure. I'll be happy to obliged to that. One horse cock coming up~"<br/><br/>She inserted her pointing finger into her own mouth, before rubbing said finger around her own clitoris. The succubus then stroked her clit until it slowly changed and grew into a large and erect horse cock. She giggled as she approached Tess with it, "I hope your gag reflex is ready, because I'm going to shove this big boy down into your throat until it reaches your stomach~"<br/><br/>Cass moaned as Tess licked and rubbed her cheeks against it, before she took an inch of it into her mouth. The demon let her suck a little bit of it for a few minutes, before grabbing her hair and forcing her horse cock down into her throat. "Aahhh~ so tight! Just like way I like it, teehee~"<br/><br/>Eventually, she thrusted her horsecock harder and faster than before. Cass gritted her teeth as she is nearing her climax, so she forced her whole cock into her. "Ahhnnn~ I'm close, master. Let's fill her up together, shall we?" She said to him, holding it for a bit so that they would both cum inside her.