Letting out a shrill gag as she feels the fingers go into her butt, unable to resist as she lets out a nice deep explosive orgasm without permission! Sobbing and choking and squirming as you feel her pussy grip your cock and milk it hard, as it is pretty much impossible to resist shooting  your seed into her while her pussy massages you. Drooling as she moans and sobs and apologized for cumming without permission, barely getting the words out with the collar chocking her neck. Tail twitching in odd angles as her cumming continues for a solid minute, testament to her succubus endurance and sexual prowess.