You want to say no - but you can't.

Past the aphrodisiacs rattling your mind, the feeling of an enormous phallic bug plugging your ass, and the burning trails of sensation up and down your body from your sister's ministrations, you want to say no.

But that part of you is small, and diminishing quickly. Why not give into the pleasure already? You're trapped in here, with a filthy parasitic demon attached to your anus and two corrupted, eager girls who will almost certainly trap you here. You can hear the sounds of the shell bug horde as they charge towards your position, a scuttling wave of incited demonic beasts preparing to warp into their slutty broodmother bitch.

You try to say no.

"N...n-n-yes. Yes, oh Goddess, yes please."

Your traitorous, horny hind brain makes you flinch in instinctive reaction, and that seals your fate. Julia laughs lustily, giving you a parting peck on the cheek as she backs up from your prone form, stating ominously, "Well, we'd better give the little dears some room to work then."

As she finishes speaking, the shell bug horde arrives in an enraged tide that blasts through the door hiding the three of you. They're a maddened wave of sexual monstrosities that wash over you in a trample as they overshoot, **** to find who or what had harmed their fellow. In that moment, your nerve breaks, and the haze of lust pulls back enough that you surge to your feet in a panic, but it's too late. The swarm crawls up your legs, bearing you to the floor as you are overburdened by their ****, made worse by the sloshing gut full of cum that fills you. They knock you to the floor, and immediately set upon you just as your sisters predicted. Thick, gooey strands of organic webbing coat your form as the shell bugs entrap you, despite your flailing. Slowly but surely, you are wrapped in a thick layer of organic rope, your limbs bound against your sides and taut gut pressed firmly within the inescapable strands. Your face is slowly enclosed with each pass of the insects, muffling your screams to pathetic moans as you are deprived of vision by the obscuring strands. You wriggle futilely, the muffled but gleeful conversation of your sisters barely reaching you through the dense coating of shell bug webbing. Already, the slick webs are making your body tingle mercilessly, the corruptive cum and acid of the demon bugs teasing your sensitive skin to new heights of pleasure.