Screw it, literally.

You sigh, or, make a disgruntled noise around the vine using your mouth, shutting your eyes and giving into the creatures desires. It seems to sense this submission, getting more aggressive with you as it snakes a tendril into your tights, finding your cock and coiling around it tightly, drawing a muffled yelp from you. The coiled vine starts pumping at your shaft eagerly, secreting something from all around it's surface to help it slide along your length, each stroke sending a strange wave up your back.

You're distracted enough that the next part is at least a bit surprising, as the vine brushing against your rear finds it's way in, simply tearing a space for itself in your clothing to work it's way in. The living vine glides surprisingly quickly into your body, slipping past your ring and going as far in as it can fit itself, leaking the same fluid as it's partners as it puffs up inside of you, filling you out more than you anticipated, for better or worse. The feeling is only made more intense when the vine draws itself out, leaving an odd emptiness in it's wake before it rushes back in.

With your mouth, cock, and ass all occupied, the creature finally get's to work, milking your length furiously while it pounds into your rear, all the while keeping you silent by thrusting it's way down your throat. Each motion is coordinated, seeming to go in a constant pattern, before the creature suddenly switches, changing the pace and ferocity of it's thrusts and tugs every moment. You feel yourself letting go more and more, sinking into the creature and letting it bundle you up, the only real movement you make is the twitchy bucking of your hips, getting faster and more feverish the closer you get to cumming..